Disclosure of Invention
The invention aims to provide a water flow washing automatic negative pressure dust collection type starch conveying device to solve the technical problem of starch dust emission in the prior art.
In order to solve the technical problems, the invention specifically provides the following technical scheme:
the invention provides a water flow scouring automatic negative pressure dust collection type starch conveying device, which comprises
The side wall of the dust collection mechanism is connected with a negative pressure water flow mechanism, and negative pressure water is flushed into the dust collection mechanism by the negative pressure water flow mechanism so that a negative pressure area is formed in the dust collection mechanism;
the starch hinging and conveying device is arranged at the upper port of the dust collecting mechanism and is used for conveying starch, and the tail end of the starch hinging and conveying device is vertically arranged on the dust collecting mechanism through a three-way pipe;
the stirring mechanism is arranged at a lower port of the dust collecting mechanism and is communicated with the dust collecting mechanism through a metal hose;
the starch is conveyed into the dust collection mechanism by the starch hinging and conveying device, and the starch is collected by the negative pressure area and conveyed to the stirring mechanism for wet-adding stirring under the flushing of the negative pressure water flow mechanism;
the dust collecting mechanism comprises a dust collecting inner pipe, a dust collecting outer pipe and an annular cavity, the dust collecting outer pipe wraps the outer side of the dust collecting inner pipe, the annular cavity is arranged between the dust collecting inner pipe and the dust collecting outer pipe, the dust collecting inner pipe is connected with the upper end of the dust collecting outer pipe to enable the upper end of the annular cavity to be closed, and the bottom of the annular cavity is communicated with the metal hose;
the negative pressure water flow mechanism is respectively communicated with the dust collection inner pipe and the annular cavity, and the dust collection mechanism is arranged at the upper end of the dust collection inner pipe and enables the starch to be conveyed to the metal hose at the dust collection inner pipe.
As a preferable scheme of the invention, a dust collecting hopper is arranged at the bottom of the dust collecting outer tube, the radius of the dust collecting hopper is gradually reduced from top to bottom, the thick end of the dust collecting hopper is respectively communicated with the annular cavity and the dust collecting inner tube, and the thin end of the dust collecting hopper is communicated with the metal hose.
As a preferable scheme of the invention, the negative pressure water flow mechanism comprises a plurality of negative pressure water pipes which penetrate through the dust collection outer pipe and are communicated with the annular cavity, wherein a flushing water pipe is arranged on one negative pressure water pipe, and the end part of the flushing water pipe sequentially penetrates through the dust collection outer pipe and the annular cavity to be communicated with the pipe inner space of the dust collection inner pipe.
As a preferable scheme of the invention, the flushing water pipe is arranged at the end part of the dust collection inner pipe, the negative pressure water pipe is arranged in the middle of the dust collection outer pipe, and the flushing water pipe is higher than the negative pressure water pipe.
As a preferable scheme of the invention, a stop valve is arranged on the negative pressure water pipe, and the flushing water pipe is arranged between the negative pressure water pipe and the dust collection inner pipe.
As a preferable scheme of the invention, the starch reaming and conveying device comprises a conveying pipe, a conveying reamer penetrating through the conveying pipe and a starch bin communicated with the conveying pipe, the three-way pipe is arranged at the tail end of the conveying reamer and communicated with the conveying pipe, a discharge hole of the three-way pipe is vertically arranged on the dust collection inner pipe, and the outer wall of the conveying pipe is connected with the dust collection outer pipe through a hoop.
As a preferable scheme of the invention, the hoop is mounted on the outer wall of the conveying pipe through screws, a telescopic rod is vertically arranged at the lower end of the hoop, the telescopic rod extends and retracts up and down through a plurality of screws, the tail end of the telescopic rod is connected with a connecting rod, the connecting rod is perpendicular to the telescopic rod, and the tail end of the connecting rod is fixedly arranged on the outer wall of the dust collecting outer pipe.
As a preferable scheme of the invention, the diameter of the three-way pipe is smaller than that of the dust collection inner pipe.
As a preferable scheme of the present invention, the stirring mechanism includes a starch wet-adding tank, a wet-adding stirring impeller vertically disposed in the starch wet-adding tank, and a water inlet pipe disposed at an upper end of the starch wet-adding tank, the metal hose is communicated with the starch wet-adding tank, and a ball float valve is disposed between the water inlet pipe and the starch wet-adding tank.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the starch pipeline for conveying is provided with the negative pressure water flow, the negative pressure water flow forms a negative pressure area in the pipeline, so that dust of starch is effectively collected, the dust of starch is effectively avoided, explosion-proof dust collection and pre-stirring are not required, and the operation cost is low;
2. according to the invention, the flushing water is arranged at the upper end of the negative pressure water to flush the inner wall of the starch conveying pipeline, and the flushing water forms a water film on the inner wall of the pipeline, so that the starch is prevented from accumulating in the blanking process of the negative pressure area, the maintenance and lubrication are not needed, the operation is convenient, and the maintenance cost is reduced;
3. according to the invention, the flushing water, the negative pressure water and the starch are finally conveyed to the mixing machine together for production, so that the waste of water resources is reduced, and the resource loss is reduced;
4. the invention has simple structure, reduces the use of electrical equipment and is safer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and fig. 2, the invention provides a water flow flushing automatic negative pressure dust collection type starch conveying device, which comprises adust collection mechanism 1, wherein a negative pressurewater flow mechanism 2 is connected to the side wall of thedust collection mechanism 1, and negative pressure water is flushed into thedust collection mechanism 1 by the negative pressurewater flow mechanism 2 so that anegative pressure area 3 is formed in thedust collection mechanism 1;
the starch hinging and conveying device 4 is arranged at the upper port of thedust collecting mechanism 1, the starch hinging and conveying device 4 is used for conveying starch, and the tail end of the starch hinging and conveying device is vertically arranged on thedust collecting mechanism 1 through a three-way pipe 5;
thestirring mechanism 6 is arranged at the lower port of thedust collection mechanism 1, and thestirring mechanism 6 is communicated with thedust collection mechanism 1 through ametal hose 7;
wherein, starch is sent intodust collecting mechanism 1 by starch hinge send device 4, and starch is collected dust bynegative pressure zone 3 and is carried to rabblingmechanism 6 under the washing of negativepressure rivers mechanism 2 and wets and stirs.
The starch reaming and conveying device 4 comprises a starch bin and a reaming and conveying cutter, starch in the starch bin falls into a reaming and conveying pipe of the reaming and conveying cutter from top to bottom, the reaming and conveying cutter conveys the starch to the three-way pipe 5 under the rotation action, the upper end of the three-way pipe 5 is communicated with the external environment and used for preventing negative pressure in the reaming and conveying device, the lower port of the three-way pipe 5 is a feed opening, and the feed opening of the three-way pipe 5 is arranged above thedust collecting mechanism 1.
The main body of thedust collection mechanism 1 is a pipeline, the central axis of the pipeline coincides with the central axis of a feed opening of the three-way pipe 5, starch is hinged into the three-way pipe 5 from a hinged cutter of the starch hinging device 4 and falls into the pipeline of thedust collection mechanism 1 under the action of gravity, ametal hose 7 is arranged at the lower end of the pipeline, themetal hose 7 is connected with thestirring mechanism 6, and the starch enters themetal hose 7 from thedust collection mechanism 1 and finally enters thestirring mechanism 6 for stirring.
The left and right sides of a pipeline of thedust collection mechanism 1 are respectively communicated with the negative pressurewater flow mechanism 2, the negative pressurewater flow mechanism 2 comprises a flushing water pipe and a negative pressure water pipe, flushing water and negative pressure water are respectively introduced into the pipeline of thedust collection mechanism 1 through the flushing water pipe and the negative pressure water pipe by the negative pressure water mechanism, the flushing water flushes the inner wall of the pipeline of thedust collection mechanism 1, negative pressure water forms anegative pressure area 3 in the pipeline of thedust collection mechanism 1, the atmospheric pressure of thenegative pressure area 3 is smaller than the ambient atmospheric pressure, when starch enters the pipeline of thedust collection mechanism 1, thenegative pressure area 3 has suction to falling starch, the starch is automatically collected into the pipeline of thedust collection mechanism 1, dust raising of the starch is effectively avoided, meanwhile, the flushing water continuously flushes the inner wall of the pipeline to convey the starch, and the starch is effectively prevented from being adhered to the inner wall of the pipeline to cause blockage.
In this embodiment,dust collecting mechanism 1 comprises dust collectinginner pipe 101, dust collectingouter pipe 102 wrapped and arranged outside dust collectinginner pipe 101, andannular cavity 103 arranged between dust collectinginner pipe 101 and dust collectingouter pipe 102, wherein dust collectinginner pipe 101 and the upper end of dust collectingouter pipe 102 are connected so that the upper end ofannular cavity 103 is closed, and the bottom ofannular cavity 103 is communicated withmetal hose 7;
the negative pressurewater flow mechanism 2 is respectively communicated with the dust collectioninner pipe 101 and theannular cavity 103, and thedust collection mechanism 1 is arranged at the upper end of the dust collectioninner pipe 101 and enables starch to be conveyed to themetal hose 7 at the dust collectioninner pipe 101.
Specifically, negative pressure water passes through the dust collectionouter pipe 102 and enters theannular cavity 103, water flow in the water flows around theannular cavity 103 and finally flows out of the bottom of theannular cavity 103, namely the bottom of the dust collectionouter pipe 102 and the bottom of the dust collectioninner pipe 101, after the negative pressure water flows out of theannular cavity 103, a flowing vortex is formed at the bottom of the dust collectionouter pipe 102, due to the Bernoulli principle, the vortex can generate anegative pressure zone 3 at a certain rotating speed, thenegative pressure zone 3 is arranged in the dust collectioninner pipe 101, thenegative pressure zone 3 can effectively collect dust for starch, mixing and stirring of the starch and the water are facilitated, and finally, a mixed liquid of the starch and the water flows into thestirring mechanism 6 from themetal hose 7 under the impact of the water.
In the embodiment, in order to further increase the rotation speed of the water flow and reduce the atmospheric pressure of thenegative pressure region 3, the dust collectinghopper 8 is arranged at the bottom of the dust collectingouter pipe 102, the radius of the dust collectinghopper 8 is gradually reduced from top to bottom, the thick end of the dust collectinghopper 8 is respectively communicated with theannular cavity 103 and the dust collectinginner pipe 101, and the thin end of the dust collectinghopper 8 is communicated with themetal hose 7.
The shape of thedust collection hopper 8 is beneficial to dust collection, the radius of thedust collection hopper 8 is reduced from top to bottom, and the smaller the radius of the pipe opening is, the faster the flow speed is when the liquid amount is the same, so when negative pressure water flows into the bottom of the dust collection hopper 8 from the end part of thedust collection hopper 8, the flow speed is increased, the flow speed of the water is increased, the atmospheric pressure on the surface of the water is reduced, and the dust collection effect of thenegative pressure area 3 is improved.
In this embodiment, the negative pressurewater flow mechanism 2 includes a plurality of negativepressure water pipes 201 penetrating through the dust collectionouter pipe 102 and communicating with theannular cavity 103, wherein a flushingwater pipe 202 is arranged on one negativepressure water pipe 201, and an end of the flushingwater pipe 202 sequentially penetrates through the dust collectionouter pipe 102 and theannular cavity 103 and communicates with the pipe inner space of the dust collectioninner pipe 101.
The negativepressure water pipe 201 is connected with a high pressure water pump, a valve is arranged on a pipeline of the negative pressure water pipe, when thedust collection mechanism 1 is used, the valve is firstly opened to enable a negative pressure passage to be formed among the negativepressure water pipe 201, the annular cavity and themetal hose 7, a flushing passage is formed among the negativepressure water pipe 201, the flushingwater pipe 202, the dust collectioninner pipe 101 and themetal hose 7, the high pressure water pump is opened, high-speed water flows into the negativepressure water pipe 201 through the high pressure water pump, the high-speed water flows from the negative pressure passage and the flushing passage respectively, the water flow in the negative pressure passage forms anegative pressure area 3 in the dust collectioninner pipe 101 at the bottom of the annular cavity due to the Bernoulli principle, and the water flow in the flushing passage flows from the inner wall of the dust collectioninner pipe 101 and impacts the inner wall.
At the moment, the starch hinging device 4 is opened, the starch hinging device 4 conveys starch to the dust collectioninner pipe 101, the starch flows into the dust collectioninner pipe 101 under the action of gravity and suction of thenegative pressure area 3, and thenegative pressure area 3 collects dust for the starch to prevent the starch from being sprayed out. And starch is washed and mixed by flushing water when entering dust collectioninner tube 101, the flushing water uniformly mixes starch and water and drives the starch to flow downwards, and wet starch is prevented from hanging on a wall, the wet starch finally enters the tail end of dust collectioninner tube 101 and is mixed with negative pressure water, the negative pressure water again stirs the starch, the starch and water are more uniformly mixed, and finally the water starch is filled withmetal hose 7 under the impact of water flow to flow intostirring mechanism 6 and is stirred together with other raw materials for forming the gypsum board.
In the present embodiment, a flushingwater pipe 202 is arranged at the end of the dust collectioninner pipe 101, a negativepressure water pipe 201 is arranged in the middle of the dust collectionouter pipe 102, and the height of the flushingwater pipe 202 is higher than that of the negativepressure water pipe 201.
The flushing water has the effects of stirring, conveying and the like on starch, the negative pressure water mainly generates negative pressure and then stirs, so that the starch is firstly impacted by the flushing water to be conveyed when entering the dust collectioninner pipe 101, the flushing water carries out stirring when conveying the starch to a negative pressure water area, and multiple stirring is favorable for uniformly mixing the starch and the water, so that the starch is prevented from being hung on a wall to block the dust collectioninner pipe 101.
In the present embodiment, astop valve 13 is provided on the negativepressure water pipe 201, and aflush water pipe 202 is provided between the negativepressure water pipe 201 and the dust collectioninner pipe 101. The flushingwater pipe 202 is a branch of the negativepressure water pipe 201, and has the functions of simplifying the device and reducing energy consumption.
In this embodiment, starch hinge send device 4 includesconveyer pipe 401, run throughconveyer pipe 401transport reamer 402 and thestarch storehouse 403 that communicates withconveyer pipe 401, store dry starch in thestarch storehouse 403, dry starch gets intoconveyer pipe 401 under the action of gravity, the direction of conveyingreamer 402 inconveyer pipe 401 is rotatory and carrying starch to theinner tube 101 that gathers dust from the whereabouts point, three-way pipe 5 sets up at the end of conveyingreamer 402 and is linked together withconveyer pipe 401, the vertical setting of discharge gate of three-way pipe 5 is on theinner tube 101 that gathers dust, when starch falls down from the lower extreme of three-way pipe 5, directly fall into theinner tube 101 that gathers dust,conveyer pipe 401 outer wall andouter tube 102 that gathers dust are connected throughstaple bolt 9.
In this embodiment, thehoop 9 is installed on the outer wall of the conveyingpipe 401 throughscrews 10, thetelescopic rod 11 is vertically arranged at the lower end of thehoop 9, thetelescopic rod 11 extends and retracts up and down through a plurality ofscrews 10, the end of thetelescopic rod 11 is connected with the connectingrod 12, the connectingrod 12 is perpendicular to thetelescopic rod 11, and the end of the connectingrod 12 is fixedly arranged on the outer wall of the dust collectingouter pipe 102.
Because the conveying speed of the starch can be changed along with the change of some production factors, when the conveying speed of the starch is increased and the amount of the starch conveyed each time is increased, the upper end opening of the dust collectioninner pipe 101 needs to be closer to the feed opening of the three-way pipe 5 by adjusting the height of thescrew 10, at the moment, thenegative pressure area 3 is close to the feed opening of the three-way pipe 5, the dust collection effect is correspondingly improved, the dust collection effect is prevented from being deteriorated due to sudden increase of the starch, the flow rate of the negative pressure water does not need to be increased, and the energy consumption is reduced.
Preferably, the diameter of thetee pipe 5 is smaller than that of the dust collectioninner pipe 101.
In this embodiment, thestirring mechanism 6 includes a starch wet-addingtank 601, a wet-addingstirring impeller 602 vertically disposed in the starch wet-addingtank 601, and awater inlet pipe 603 disposed at an upper end of the starch wet-addingtank 601, themetal hose 7 is communicated with the starch wet-addingtank 601, and aball float valve 604 is disposed between thewater inlet pipe 603 and the starch wet-addingtank 601.
Thewet stirring impeller 602 in the starch wet addingtank 601 is used for stirring starch, water and other raw materials for manufacturing gypsum boards, flushing water, negative pressure water and starch are conveyed into the starch wet addingtank 601 along themetal hose 7, and the flushing water, the negative pressure water and the starch are uniformly stirred by thewet stirring impeller 602 and then enter the mixer for production and application. When the liquid material in the starch wet addingtank 601 reaches a certain height, theball float valve 604 is leveled and thewater inlet pipe 603 is closed.
Through the automatic negative pressure dust collection type starch conveyor of rivers erode of this embodiment, can carry out effectual dust collection to starch when starch is carried, and realize the stirring and the transport of starch when carrying through negative pressure water and washing water to form the one deck water film in pipeline, avoid starch long-pending material at unloading in-process, prevent effectively that the starch wall built-up from blockking up pipeline, do not need explosion-proof dust collection and preliminary mixing, full automation operation.
The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.