CN113577805A - Non-embedded type slurry tank fine powder recovery device and powder recovery treatment process - Google Patents
Non-embedded type slurry tank fine powder recovery device and powder recovery treatment process Download PDFInfo
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- CN113577805A CN113577805A CN202110841812.9A CN202110841812A CN113577805A CN 113577805 A CN113577805 A CN 113577805A CN 202110841812 A CN202110841812 A CN 202110841812A CN 113577805 A CN113577805 A CN 113577805A
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- 239000000843 powder Substances 0.000 title claims abstract description 149
- 239000002002 slurry Substances 0.000 title claims abstract description 93
- 238000011084 recovery Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims description 11
- 239000000428 dust Substances 0.000 claims abstract description 79
- 239000002912 waste gas Substances 0.000 claims abstract description 35
- 238000000889 atomisation Methods 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 128
- 238000003860 storage Methods 0.000 claims description 58
- 238000005507 spraying Methods 0.000 claims description 49
- 238000002156 mixing Methods 0.000 claims description 48
- 238000005303 weighing Methods 0.000 claims description 31
- 238000003756 stirring Methods 0.000 claims description 23
- 239000007789 gas Substances 0.000 claims description 22
- 239000007921 spray Substances 0.000 claims description 21
- 238000007599 discharging Methods 0.000 claims description 13
- 230000005484 gravity Effects 0.000 claims description 12
- 230000003578 releasing effect Effects 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 7
- 238000004064 recycling Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 2
- 238000010926 purge Methods 0.000 claims 1
- 238000001694 spray drying Methods 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract 3
- 238000000227 grinding Methods 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 238000001035 drying Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000498 ball milling Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/16—Evaporating by spraying
- B01D1/18—Evaporating by spraying to obtain dry solids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
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Abstract
The invention discloses a non-embedded type slurry tank fine powder recovery device which comprises a spray drying tower, a dust removal device and a fine powder recovery device. The slurry which is ground by a ball mill and homogenized by a slurry tank enters a spray drying tower through a pipeline for high-pressure atomization, hot air is blown downwards from the top through an air pipe inlet, the atomized slurry is heated and dried by the hot air through heat exchange, fine dust particles are formed after the atomized slurry is dried, the fine dust particles fall into and are converged at the bottom of the spray drying tower, then the fine dust particles flow out and are collected from a finished product discharge port, the heated air carries fine powder, the fine powder flows out from a waste gas outlet, the fine powder in the waste gas is filtered and collected by a dust removal device, the collected fine powder is re-stirred uniformly according to a certain proportion by a fine powder recovery device to form slurry, and the slurry is supplied to the spray drying tower for continuous use.
Description
Technical Field
The invention relates to the technical field of ceramic building material production equipment, in particular to a non-embedded type slurry tank fine powder recovery device.
Background
The ball mill is a common material refining and grinding device. It is widely used in the production industries of cement, ceramic raw materials, refractory materials and the like. The basic working mode is that a certain amount of high-alumina ballstones, medium-alumina ballstones, cobblestones or other hard substances are loaded into a roller of the ball mill to serve as grinding bodies, then raw materials needing to be ground and refined are input through a feeding device, a lining plate in the roller drives the grinding bodies to roll, when the grinding bodies are driven to a certain height, the grinding bodies fall off under the action of gravity of the grinding bodies, the falling grinding bodies smash and refine the raw materials in the roller, and then the refined raw materials form slurry and flow out through sieve holes in a sieve plate at the tail end of the roller. The ground slurry is only an intermediate product, and a fine powder finished product can be formed only by drying and recovering the slurry; the existing drying and recycling equipment has the defect of complex structure, and powder is easy to leak out to generate pollution in the drying and recycling process. In addition, in the drying process of the spray drying tower, fine powder is discharged along with air, and the fine powder treated by the dust removal device cannot be supplied to subsequent equipment for continuous use due to the fact that the fine powder is too fine and is prone to dust raising; however, the existing method consumes a large amount of electricity, increases the cost and has negative effects on the environment.
Disclosure of Invention
To overcome at least one of the above-described deficiencies of the prior art, the present invention provides a non-flush chest fines recovery apparatus.
The technical scheme adopted by the invention for solving the problems is as follows:
according to one aspect of the invention, the invention provides a non-embedded slurry tank fine powder recovery device, which comprises a spray tower and a dust removal device; the spraying tower is provided with an airflow inlet, a waste gas outlet and a finished product discharge port which are used for being connected with a hot gas source, the airflow inlet, the waste gas outlet and the finished product discharge port are sequentially arranged along the gravity direction from top to bottom in a working state, and the dust removal device is connected with the waste gas outlet; an atomization spraying device communicated with a slurry source is also arranged in the spraying tower.
When the spraying device works, ground slurry is connected with the atomizing and spraying device through a pipeline, then a hot air source is started, heated air is blown downwards from the top of the spraying tower through an air flow inlet, then the atomizing and spraying device is started to atomize the slurry and spray the atomized slurry in the spraying tower, then the heated air heats and dries the atomized slurry, so that powder formed after the atomized slurry is dried falls down under the action of self gravity, falls into and is collected at the bottom of the spraying tower, then the atomized slurry flows out of a finished product discharge port and is collected, the heated air flows out of a waste gas outlet, and the powder in waste gas is filtered and collected by a dust removal device.
In some embodiments, a dust recovery structure is also included; the dust recovery structure comprises a control system, a powder discharging control structure, a weighing system, a water quantity release device and a mixing container; the powder feeding control structure, the weighing system and the water quantity releasing device are respectively and electrically connected with the control system; the dust removal device, the powder discharging control structure, the mixing container and the weighing system are sequentially arranged and linked, and the water quantity release device is connected with the mixing container, so that the control system can monitor the weight of the mixing container through the weighing system and respectively control the powder release quantity of the powder discharging control structure and the water release quantity of the water quantity release device according to a preset powder and water weight proportional value.
In some embodiments, the dust removing device comprises a cyclone dust collector, the cyclone dust collector is provided with a first waste gas inlet, a first dust collecting outlet and a first purified gas outlet, and the first waste gas inlet is connected with the waste gas outlet.
In some embodiments, the mixing container includes a first storage tank; the first storage box body is connected with the first dust collecting outlet.
In some embodiments, the water release device comprises a first water tank and a first valve body; the non-embedded type slurry pool fine powder recovery device also comprises a first conveying pump device; the first water tank is communicated with the first storage box body through the first valve body, and the first delivery pump device is arranged to be used for delivering slurry in the first storage box body to the atomization spraying device.
In some embodiments, the control system comprises a first control system, the weighing system comprising a first weight sensor; the first weight sensor is arranged below the first storage box body, the first weight sensor and the first valve body are electrically connected with the first control system, so that after the first control system instructs the first valve body to release water with preset weight to the first storage box body, the first control system instructs the powder blanking control structure to release powder into the first storage box body according to the real-time measurement value of the first weight sensor until the weight of the powder released monitored by the first weight sensor and the water with preset weight released to the first storage box body reach the preset powder and water weight ratio value.
In some embodiments, the atomizing spraying device further comprises a first stirring device, the first stirring device is arranged in the first storage box, the first conveying pump device and the first stirring device are electrically connected with the first control system, so that after the first control system controls the first valve body to release water with corresponding weight according to a preset powder and water weight proportion value, the first control system instructs the first stirring device to stir the powder and the water uniformly to form slurry, and then the first control system instructs the first conveying pump device to convey the slurry to the atomizing spraying device.
In some embodiments, the dust removing device further comprises a bag-type dust remover, the bag-type dust remover is provided with a second waste gas inlet and a second dust collecting outlet, and the second waste gas inlet is connected with the first purified gas outlet.
In some embodiments, the mixing container includes a second storage tank; the second storage box body is connected with the second dust collecting outlet.
In some embodiments, the water release device comprises a second water tank and a second valve body; the non-embedded type slurry pool fine powder recovery device also comprises a second conveying pump device; the control system comprises a second control system, and the weighing system comprises a second weight sensor; the second water tank is communicated with the second storage box body through a second valve body, and the second delivery pump device is arranged to be used for delivering the slurry in the second storage box body to the atomization spraying device; the second weight sensor is arranged below the second storage box body, the second weight sensor and the second valve body are electrically connected with the second control system, so that after the second control system instructs the second valve body to release water with preset weight to the second storage box body, the second control system instructs the powder blanking control structure to release powder into the second storage box body according to the real-time measurement value of the second weight sensor until the weight of the powder released and the water with preset weight released by the second weight sensor reach the preset powder-water weight ratio.
There is also provided according to another aspect of the present invention a powder recovery processing process, including:
s1, supplying the slurry ground by the ball mill to an atomization spraying device in a spray tower, and supplying a hot gas source to an airflow inlet of the spray tower;
s2, atomizing the slurry by an atomizing and spraying device and spraying the atomized slurry to an air outlet downstream space of the air flow inlet;
s3, hot air flow sprayed out from the air flow inlet dries the atomized slurry to form dry powder, and the powder falls to the bottom of the spray tower under the action of self gravity;
s4, the heated hot air flow flows out of the spray tower through the waste gas outlet and is supplied to a dust removal device;
s5, filtering and collecting the powder carried in the heated hot air flow by a dust removal device and supplying the powder to a powder blanking control structure;
s6, the control system monitors the weight of the mixing container through the weighing system, and respectively controls the powder release amount of the powder blanking control structure and the water release amount of the water release device according to the preset powder-water weight ratio value until slurry with the preset powder-water weight ratio is formed in the mixing container through mixing.
In some embodiments, S6 further comprises: after the control system instructs the water quantity release device to release water with preset weight to the mixing container, the control system instructs the powder blanking control structure to release powder into the mixing container according to the real-time measurement value of the weighing system until the powder release weight monitored by the weighing system and the water with preset weight released to the mixing container reach the preset powder and water weight ratio value.
Drawings
FIG. 1 is a schematic structural diagram of a non-embedded slurry tank fines recovery apparatus according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion indicated by A in FIG. 1;
FIG. 3 is an enlarged view of a portion indicated by B in FIG. 1;
fig. 4 is a partially enlarged view of C in fig. 1.
Wherein the reference numerals have the following meanings:
1. a spray tower; 11. an airflow inlet; 12. an exhaust gas outlet; 13. discharging a finished product; 2. a dust removal device; 21. a cyclone dust collector; 211. a first storage box; 212. a first water tank; 213. a first valve body; 214. a first weight sensor; 22. a bag-type dust collector; 221. a second storage box; 222. a second water tank; 223. a second valve body; 224. a second weight sensor; 31. a pneumatic gate valve; 32. a weight valve; 4. a slurry pump; 5. a storage tank; 6. and (5) discharging the material pipe.
Detailed Description
For better understanding and implementation, 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.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1-3, the present invention provides a non-embedded slurry tank fine powder recovery device, which comprises a spray tower 1 and a dust removal device 2; the spraying tower 1 is provided with an airflow inlet 11, a waste gas outlet 12 and a finished product discharge port 13 which are used for being connected with a hot gas source, the airflow inlet 11, the waste gas outlet 12 and the finished product discharge port 13 are sequentially arranged from top to bottom along the gravity direction in a working state, and the dust removal device 2 is connected with the waste gas outlet 12; an atomization spraying device communicated with a slurry source head is also arranged in the spraying tower 1.
During operation, ground slurry is connected with an atomization spraying device through a pipeline, a hot air source is connected with an air flow inlet 11, then the hot air source is started, heated air is blown downwards from the top of a spraying tower 1 through the air flow inlet 11, then the atomization spraying device is started, the slurry is atomized and sprayed into the spraying tower 1, then the atomized slurry is heated and dried by the heated air, powder formed after the atomized slurry is dried falls down under the action of self gravity and falls into and is converged at the bottom of the spraying tower 1, then the powder flows out of a finished product discharge hole 13 and is collected, the heated air flows out of a waste gas outlet 12, and the powder in the waste gas is filtered and collected by a dust removal device 2.
In the embodiment, the dust recycling device further comprises a dust recycling structure; the dust recovery structure comprises a control system, a powder discharging control structure, a weighing system, a water quantity release device and a mixing container; the powder feeding control structure, the weighing system and the water quantity releasing device are respectively and electrically connected with the control system; the dust removal device 2, the powder discharging control structure, the mixing container and the weighing system are sequentially arranged and linked, and the water quantity release device is connected with the mixing container, so that the control system can monitor the weight of the mixing container through the weighing system and respectively control the powder release quantity of the powder discharging control structure and the water release quantity of the water quantity release device according to a preset powder and water weight proportional value. Thus, the dust removing device 2 filters and collects the powder in the waste gas and then transmits the powder to the powder preparing and feeding control structure, then the control system respectively controls the releasing action of the powder blanking control structure and the releasing action of the water quantity releasing device so as to respectively release the powder and the water into the mixing container, and the weight of the powder and the water released into the mixing container is respectively monitored by a weighing system until the powder release amount of the powder blanking control structure and the water release amount of the water release device reach a preset powder and water weight ratio value, so that the powder and the water can be mixed according to a preset ratio to form slurry, then adding the slurry into a slurry source again to be conveyed to an atomization spraying device again, forming finished powder after atomization and heating drying, so that the powder collected from the exhaust gas by the dust removing device 2 is recycled, and the dust removing device has the characteristic of environmental protection. In detail, in this embodiment, a storage tank 5 for storing the slurry is further provided on the upstream pipeline of the atomizing spray device, so that the slurry can be first delivered and stored into the storage tank for use by the atomizing spray device.
In the present embodiment, the dust removing device 2 comprises a cyclone dust collector 21, and the cyclone dust collector 21 is provided with a first waste gas inlet, a first dust collecting outlet and a first purified gas outlet, and the first waste gas inlet is connected with the waste gas outlet 12. Thus, after the heated air flows out from the exhaust gas outlet 12 of the spray tower 1, part of the powder is carried, and after the dust removal processing by the cyclone 21, the air flows out from the first dust collection outlet and is collected, and the purified air flows out from the first purified gas outlet. In detail, the powder may fall and be accumulated in the lower cone of the dust removing device 2 by its own weight.
In the present embodiment, the mixing container further includes a first storage tank body 211; the first storage tank 211 is connected to the first dust collection outlet. After the dust removal processing by the cyclone 21, the dust flows out from the first dust collection outlet and is collected in the first storage tank 211.
In this embodiment, the water amount releasing means further includes a first water tank 212 and a first valve body 213; the non-embedded type slurry pool fine powder recovery device also comprises a first conveying pump device; the first water tank 212 is communicated with the first storage tank 211 through a first valve body 213, and a first delivery pump device is provided for delivering the slurry in the first storage tank 211 to the atomizing spray device. In detail, the atomizing spray device is further provided with a storage tank 5, and the slurry can be stored in the storage tank 5 to be supplied to the atomizing spray device. Like this, the user can put into first storage box 211 through the water of controlling first valve body 213 in coming first water tank 212, make the powder that is collected mix with water and form the slurry again, then the first delivery pump device of rethread operation is carried this slurry for atomizing sprinkler and is atomized and sprayed, the powder back of collecting in the waste gas again, add water and mix and form and carry again for atomizing sprinkler atomization treatment after the slurry, avoid the powder in the waste gas to pollute the atmosphere, ball-milling grinding has been reduced, the process of thick liquid pond homogenization, and the production cost is reduced, and the device has the characteristics of environmental protection and energy saving.
As shown in fig. 1 and 2, in the present embodiment, the control system includes a first control system, and the weighing system includes a first weight sensor 214; the first weight sensor 214 is disposed below the first storage tank 211, and the first weight sensor 214 and the first valve body 213 are electrically connected to the first control system, so that after the first control system instructs the first valve body 213 to release water with a preset weight to the first storage tank 211, the first control system instructs the powder discharging control structure to release powder into the first storage tank 211 according to a real-time measurement value of the first weight sensor 214 until the weight of the powder released and the water with the preset weight released to the first storage tank 211, which are monitored by the first weight sensor 214, reach a preset powder-water weight ratio. . Therefore, during operation, the first control system firstly instructs the first valve body 213 to release water to the first storage tank 211, the first weight sensor 214 monitors in real time, and after releasing water with a preset weight into the first storage tank 211, the first control system then instructs the powder discharging control structure to release powder into the first storage tank 211, and the first weight sensor 214 monitors in real time until the weight of the powder released and the water with the preset weight released into the first storage tank 211, which are monitored by the first weight sensor 214, reach a preset powder-water weight ratio, so that a flow of adding water and then adding powder is realized.
In this embodiment, the atomizing spraying device further comprises a first stirring device, the first stirring device is disposed in the first storage box 211, the first conveying pump device and the first stirring device are electrically connected to the first control system, so that after the first control system controls the first valve body 213 to release water with a corresponding weight according to a preset powder-water weight ratio, the first control system instructs the first stirring device to stir the powder and the water uniformly to form slurry, and then the first control system instructs the first conveying pump device to convey the slurry to the atomizing spraying device. Therefore, when the first control system controls the first valve body 213 to release water with a corresponding weight according to a preset powder-water weight ratio, the first control system instructs the first stirring device to stir the powder and the water uniformly to form slurry, and then instructs the first delivery pump device to deliver the slurry to the atomizing and spraying device, so that the automation degree of the invention is further improved.
In this embodiment, the dust removing device 2 further includes a bag-type dust remover 22, the bag-type dust remover 22 is provided with a second waste gas inlet and a second dust collecting outlet, and the second waste gas inlet is connected with the first purified gas outlet. Therefore, the bag-type dust collector 22 can perform secondary purification on the purified gas flowing out of the first purified gas outlet of the cyclone dust collector 21, and the dust collection effect is further improved.
In this embodiment, a second storage box 221 is further included; the second storage tank 221 is connected to the second dust collection outlet. Thus, after the dust removal processing by the bag dust collector 22, the dust flows out from the second dust collection outlet and is collected in the second storage tank 221.
As shown in fig. 1 and 3, in the present embodiment, the present invention further includes a second water tank 222, a second valve 223, a second delivery pump device, a second control system, and a second weight sensor 224; the second water tank 222 is communicated with the second storage tank 221 through a second valve body 223, and a second delivery pump device is arranged for delivering slurry in the second storage tank 221 to the atomization spraying device; the second weight sensor 224 is disposed below the second storage tank 221, and both the second weight sensor 224 and the second valve body 223 are electrically connected to the second control system, so that after the second weight sensor 224 measures the weight of the powder in the second storage tank 221, the second control system controls the second valve body 223 to release water of a corresponding weight according to a preset powder-to-water weight ratio. Thus, a user can control the second valve body 223 to place water in the second water tank 222 into the second storage tank 221, so that collected powder and water are mixed to form slurry again, then the slurry is conveyed to the atomization spraying device for atomization spraying by operating the second conveying pump device, after the powder in the waste gas is collected again, water is added to form slurry, and then the slurry is conveyed to the atomization spraying device for atomization treatment, so that the pollution of the powder in the waste gas to the atmosphere is avoided, and the device has the characteristic of environmental protection; when the weight of the powder reaches a preset threshold value, the second weight sensor 224 measures the weight of the powder in the second storage box 221, the numerical value is sent to the second control system, and the second control system controls the second valve body 223 to release water with corresponding weight according to a preset powder-water weight ratio value, so that the powder and the water are mixed according to a preset ratio to form slurry with preset water content, manual operation is not needed, and the automatic water-saving powder mixing device has the characteristic of high automation degree.
In this embodiment, the second stirring device is further included, the second stirring device is disposed in the second storage box 221, the second delivery pump device and the second stirring device are electrically connected to the second control system, so that after the second control system controls the second valve body 223 to release water with a corresponding weight according to a preset powder-water weight ratio, the second control system instructs the second stirring device to stir the powder and the water uniformly to form slurry, and then the second control system instructs the second delivery pump device to deliver the slurry to the atomization spraying device.
Therefore, after the second control system controls the second valve body 223 to release water with corresponding weight according to the preset powder-water weight ratio, the second control system instructs the second stirring device to stir the powder and the water uniformly to form slurry, and then instructs the second delivery pump device to deliver the slurry to the atomization spraying device, so that the automation degree of the invention is further improved.
As shown in fig. 1 and 4, in detail, in the present embodiment, the powder discharging control structure includes a pneumatic gate valve 31 and a weight valve 32; in the process of releasing and mixing the powder and the water, the powder filtered by the dust removal device 2 falls to the lower cone part under the action of gravity, because the powder weighing function is realized by a weighing system arranged at the bottom of the mixing container, if the powder and the water are released simultaneously, and the weight of the falling powder cannot be controlled, the proportion of the water and the powder cannot be accurately controlled, and therefore, a pneumatic gate valve 31 is required to be added into a blanking pipe 6 at the outlet of the lower cone of the dust removal device 2 to control the blanking of the powder; increase the weight valve 32 simultaneously, how much weight powder, how big opening under the weight valve 32 can be under the powder action of gravity, the purpose is in order to reduce revealing of wind, reduces the loss of entire system wind energy to reduce the operating frequency of draught fan, reach energy-conserving effect.
When the water dispenser is further operated, a stirrer in the mixing container is started, the control system firstly instructs the water quantity release device to release a certain quantity of water to the mixing container, the weight value of the water can be directly measured by a weighing system at the bottom of the mixing container or measured by a flow sensor, the water adding is a relatively short process, and one or more sets of water tanks for supplying water sources can be used; after the water is added, a signal is fed back to the control system, the control system instructs the pneumatic gate valve 31 to open, the powder falls into the mixing container under the action of gravity and is uniformly stirred, when the weight of the powder and the weight of the water reach a preset proportion, the weighing system gives a signal to the control system, the control system instructs the electromagnetic valve of the pneumatic gate valve 31 to close, the powder does not fall, and the mixing according to the preset proportion is completed to form the slurry meeting the requirements;
further, the control system transmits a signal to the slurry pump 4 (in detail, in the embodiment, the slurry pump 4 includes a first delivery pump and a second delivery pump), the slurry in the mixing container is pumped into the storage tank 5 arranged in front of the atomizing and spraying device of the spraying tower to be uniformly mixed, one or more conditions may exist in the slurry pump 4 according to the conditions, the pneumatic valve or the electric valve controls which full mixing container is pumped, whether the slurry in the mixing container is pumped out or not can be determined through the weighing sensor, and after the slurry pump is pumped out, the slurry pump 4 is stopped, and a work cycle is completed. And after one period is finished, mixing according to the steps of adding water and then adding powder to prepare the slurry with the preset proportion, and repeating the circulation. The weight of the added water, the weight of the fallen powder and the weight of the pumped mud can be set with preset values in the control system, and corresponding instructions are executed according to the preset values.
In this embodiment, according to another aspect of the present invention, there is also provided a powder recovery processing process, including:
s1, supplying the slurry ground by the ball mill to an atomization spraying device in the spray tower 1, and supplying a hot gas source to an airflow inlet 11 in the spray tower 1;
s2, atomizing the slurry by an atomizing and spraying device and spraying the atomized slurry to an air outlet downstream space of the air flow inlet 11;
s3, hot air flow sprayed out from the air flow inlet 11 dries the atomized slurry to form dry powder, and the powder falls to the bottom of the spray tower 1 under the action of self gravity;
s4, the heated hot air flow flows out of the spray tower 1 through the waste gas outlet 12 and is supplied to the dust removal device 2;
s5, the dust removal device 2 filters and collects the powder carried in the heated hot air flow and supplies the powder to the powder blanking control structure;
s6, the control system monitors the weight of the mixing container through the weighing system, and respectively controls the powder release amount of the powder blanking control structure and the water release amount of the water release device according to the preset powder-water weight ratio value until slurry with the preset powder-water weight ratio is formed in the mixing container through mixing.
In further detail, S6 further includes: after the control system instructs the water quantity release device to release water with preset weight to the mixing container, the control system instructs the powder blanking control structure to release powder into the mixing container according to the real-time measurement value of the weighing system until the powder release weight monitored by the weighing system and the water with preset weight released to the mixing container reach the preset powder and water weight ratio value.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.
Claims (10)
1. The non-embedded type slurry pool fine powder recovery device is characterized in that: comprises a spray tower (1) and a dust removal device (2);
the spraying tower (1) is provided with an airflow inlet (11), a waste gas outlet (12) and a finished product discharge hole (13), wherein the airflow inlet (11), the waste gas outlet (12) and the finished product discharge hole (13) are connected with a hot gas source, and are sequentially arranged along the gravity direction from top to bottom in a working state, and the dust removal device (2) is connected with the waste gas outlet (12);
and an atomization spraying device communicated with a slurry source head is also arranged in the spraying tower (1).
2. The non-submerged mud pit fines recovery apparatus of claim 1, further comprising a dust recovery structure;
the dust recovery structure comprises a control system, a powder discharging control structure, a weighing system, a water quantity releasing device and a mixing container;
the powder discharging control structure, the weighing system and the water quantity releasing device are respectively and electrically connected with the control system;
the dust removal device (2), the powder blanking control structure, the mixing container and the weighing system are sequentially arranged and linked, and the water quantity release device is connected with the mixing container, so that the control system can monitor the weight of the mixing container through the weighing system and respectively control the powder release quantity of the powder blanking control structure and the water release quantity of the water quantity release device according to a preset powder and water weight ratio value.
3. The non-submerged slurry tank fines recovery apparatus in accordance with claim 2, characterized by the dust removal apparatus (2) comprises a cyclone (21), the cyclone (21) being provided with a first exhaust gas inlet, a first dust collection outlet and a first purge gas outlet, the first exhaust gas inlet being connected to the exhaust gas outlet (12).
4. The non-submerged pit fines recovery apparatus of claim 3, where the mixing vessel includes a first storage tank (211); the first storage box body (211) is connected with the first dust collection outlet.
5. The non-submerged pit fines recovery apparatus of claim 4, characterized in that the water release means comprises a first water tank (212) and a first valve body (213);
the non-embedded type slurry pool fine powder recovery device also comprises a first conveying pump device;
the first water tank (212) is communicated with the first storage tank body (211) through the first valve body (213), and the first conveying pump device is arranged to convey slurry in the first storage tank body (211) to the atomization spraying device.
6. The non-submerged pit fines recovery apparatus of claim 5, wherein the control system comprises a first control system, the weighing system comprises a first weight sensor (214);
the first weight sensor (214) is arranged below the first storage box body (211), the first weight sensor (214) and the first valve body (213) are electrically connected with the first control system, so that after the first control system instructs the first valve body (213) to release water with preset weight to the first storage box body (211), the first control system instructs the powder blanking control structure to release powder into the first storage box body (211) according to a real-time measurement value of the first weight sensor (214) until the powder release weight monitored by the first weight sensor (214) and the water with preset weight released to the first storage box body (211) reach a preset powder-water ratio value.
7. The non-embedded slurry tank fine powder recovery device as recited in claim 6, further comprising a first stirring device disposed in the first storage tank (211), wherein the first transfer pump device and the first stirring device are electrically connected to the first control system, so that after the first control system controls the first valve (213) to release water with corresponding weight according to a preset powder-water weight ratio, the first stirring device uniformly stirs powder and water to form slurry, and then the first control system instructs the first transfer pump device to transfer the slurry to the atomization spraying device.
8. The non-embedded slurry tank fine powder recovery device as recited in claim 3, wherein the dust removal device (2) further comprises a bag-type dust remover (22), the bag-type dust remover (22) is provided with a second waste gas inlet and a second dust collection outlet, and the second waste gas inlet is connected with the first purified gas outlet.
9. The powder recovery treatment process is characterized by comprising the following steps:
s1, supplying the slurry ground by the ball mill to the atomization spraying device in the spraying tower (1), and supplying a hot gas source to the gas flow inlet (11) of the spraying tower (1);
s2, atomizing the slurry by the atomizing and spraying device, and spraying the atomized slurry in an air outlet downstream space of the air flow inlet (11);
s3, hot air flow sprayed out by the air flow inlet (11) dries the atomized slurry to form dry powder, and the powder falls to the bottom of the spray tower (1) under the action of self gravity;
s4, the heated hot air flow flows out of the spray tower (1) through the waste gas outlet (12) and is supplied to the dust removal device (2);
s5, filtering and collecting powder carried in the heated hot air flow by the dust removal device (2) and then supplying the powder to the powder blanking control structure;
and S6, the control system monitors the weight of the mixing container through the weighing system, and respectively controls the powder release amount of the powder blanking control structure and the water release amount of the water release device according to a preset powder-to-water weight ratio value until slurry with a preset powder-to-water weight ratio is formed in the mixing container through mixing.
10. The powder recycling process of claim 9, wherein the S6 further comprises: after the control system instructs the water quantity release device to release water with preset weight to the mixing container, the control system instructs the powder blanking control structure to release powder into the mixing container according to the real-time measurement value of the weighing system until the ratio of the powder release weight monitored by the weighing system to the water with preset weight released to the mixing container reaches a preset powder-water weight ratio value.
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| CN113908751A (en) * | 2021-11-25 | 2022-01-11 | 保定华联领世科技有限公司 | Energy-concerving and environment-protective dispersible emulsion powder uses apparatus for producing |
| CN114247338A (en) * | 2021-11-04 | 2022-03-29 | 江阴市星宇化工有限公司 | Efficient automatic feeding and pulping device and process for high-activity tricalcium phosphate |
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