CN219624349U - Bulk material dehydration and dehumidification device - Google Patents
Bulk material dehydration and dehumidification device Download PDFInfo
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- CN219624349U CN219624349U CN202320091148.5U CN202320091148U CN219624349U CN 219624349 U CN219624349 U CN 219624349U CN 202320091148 U CN202320091148 U CN 202320091148U CN 219624349 U CN219624349 U CN 219624349U
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Abstract
The utility model discloses a bulk material dehydration and dehumidification device, which comprises a material storage bin: the device is used for placing materials to be dehydrated and dehumidified; negative pressure mechanism: the vacuum mechanism is used for vacuumizing the material storage bin to obtain a negative pressure environment, and is communicated with the material storage bin; and a heat supply mechanism: compared with the prior art, the utility model can carry out gas pumping on the material storage bin by the negative pressure mechanism, so that the material storage bin becomes a negative pressure environment, moisture in the material can permeate from the inside to the outside, and the material can be rapidly dehydrated and dehumidified in the negative pressure high temperature environment by the heat supply mechanism arranged around the material storage bin.
Description
Technical Field
The utility model relates to the technical field of bulk material treatment, in particular to a bulk material dehydration and dehumidification device.
Background
Bulk materials, which generally refer to a large amount of unpackaged bulk, granular, powdery materials (bulk materials for short), such as coal, sand, grains, cement, sugar blocks and the like, are piled together, have a wide range, and in the prior art, when some kinds of bulk materials are treated, dry-wet separation operation is generally required, so that the use of materials due to internal humidity is prevented, and a dry-wet separation device is required for carrying out treatment processing in order to realize dry-wet separation.
The granulated blast furnace slag powder (slag micropowder for short) is a powdery product obtained by superfine grinding of water quenched slag discharged from an iron-making blast furnace, can be used as a concrete admixture to replace equivalent cement, can improve the durability of concrete and the comprehensive performance of the concrete, and is a mineral fine admixture with excellent performance.
In the prior art, no matter what water quenching slag process is adopted, the common treatment process method comprises the projects of slag pool filtration, dehydration, lifting, conveying and the like, after the slag is dehydrated, the water content is higher, the slag cannot be immediately transported by an automobile, water is sprayed in a transportation path, the environmental sanitation is affected, water control is needed in a slag field, the water content is required to be achieved, the water can be transported on the way, and the conventional general water control device mainly adopts a storage bin to control the water, so that the slag is naturally dehydrated, and even if the slag is transported by an engineering vehicle, the general water content is still 12-15%, and the water slag treatment field is easy to be bad due to insufficient water slag dehydration.
Slag with 12-15% of water is transported to a slag micropowder production plant, and due to high water content, the slag micropowder production plant most commonly adopts a closed plant water slag storage yard mode, namely, after outsourced water slag is transported into the plant through an automobile, the outsourced water slag is stacked on the closed plant storage yard for 3-5 days or longer, the water slag is naturally dehydrated, and then the water slag is placed on a hopper for transportation by a forklift. The method has the advantages of large occupied area, large capital investment, long slag storage time, long turnover period, poor working environment and high labor intensity, belongs to the most traditional natural airing mode, and is most important that the water content is still maintained at 10-12% although the airing time is long, meanwhile, the materials are in a state of being dry up and wet down (being dry outside and wet inside), the water content is unstable to control, and the operation requirement of a continuous large-yield production line of a modern factory is difficult to meet.
In addition, in the slag micropowder production process, if slag raw materials with higher water content are directly put into mill equipment, on one hand, a large amount of free water is easy to stay in the mill equipment, so that the equipment is rusted and corroded, the service life of the mill equipment is reduced, and economic loss is caused; on the other hand, slag raw materials with higher water content directly enter grinding equipment to prolong the grinding time and drying time of slag; meanwhile, as the slag micropowder has high viscosity and poor dust stripping performance, the slag with high water content can cause a slag grinding system to have high resistance, so that the power consumption is increased, the high resistance and low efficiency of the bag type dust collector are also easily caused, and the resistance of a powder selecting system is increased; in addition, in the actual production process, the equipment is blocked because the high water content of the materials is easy to cause hardening in the material transmission process, and particularly in the winter in the north, slag with high water content is easy to agglomerate, so that the normal production efficiency is influenced.
Because the water content of the slag raw material is higher, the slag micropowder production line is generally provided with a hot blast stove system for drying the slag raw material by utilizing heat generated by burning coal dust, coal gas or natural gas, so that the slag is heated and dried in the production process, and the water content of a slag micropowder finished product is ensured to be less than 1%. Because the water content of the slag raw material is 10% -12%, a large amount of energy is consumed to dry the slag raw material, and the high-humidity waste heat gas generated in the drying process is discharged into the atmosphere through a chimney, so that the energy is wasted, and the environment is polluted. Therefore, a low-cost pollution-free dehydration device is needed for the blast furnace slag dehydration and slag micropowder production line, so that the slag moisture is reduced as much as possible.
Disclosure of Invention
The utility model aims to provide a bulk material dehydration and dehumidification device with low cost, greenness and cleanliness, which can not realize energy conservation, emission reduction, carbon reduction, efficiency enhancement and safe production, and can also simplify the operation of a production line and reduce the labor intensity of workers.
In order to solve the problems, the utility model provides a bulk material dehydration and dehumidification device, which comprises,
and a material storage bin: the device is used for placing materials to be dehydrated and dehumidified;
negative pressure mechanism: the negative pressure mechanism is communicated with the material storage bin;
and a heat supply mechanism: the heat supply mechanism is used for providing a heat source and rapidly dehydrating and dehumidifying materials to be dehydrated and dehumidified, and is fixedly arranged on the material storage bin.
The utility model can carry out gas pumping on the material storage bin by arranging the negative pressure mechanism, so that the material storage bin becomes a negative pressure environment, moisture in the material can permeate from the inside to the outside, and the material can be rapidly dehydrated and dehumidified in the negative pressure high temperature environment by the heat supply mechanism arranged around the material storage bin.
Preferably, the material storage bin comprises upper portion, middle part and lower part, the upper portion of material storage bin is the cover, the middle part of material storage bin is the cylinder that both ends all are provided with the open-ended, the lower part of material storage bin is the cone fill, be provided with the pan feeding mouth on the cover, heating mechanism is fixed to be set up on the lateral wall of cylinder, be provided with filtering mechanism on the inside wall of cone fill, just the cone fill with negative pressure mechanism is linked together, the bottom of cone fill is provided with the discharge gate.
Preferably, the filtering mechanism comprises a grate plate and a water filtering plate fixedly arranged on the grate plate, the grate plate is fixed with the cone bucket, a water draining groove is formed between the grate plate and the inner side wall of the cone bucket, a collecting pipeline communicated with the water draining groove is further arranged outside the material storage bin, and a water filtering valve is further arranged between the water draining groove and the collecting pipeline. The gas in the material storage bin and the water in the water slag enter the negative pressure mechanism through the grid plate, the water filtering plate and the water filtering valve under the negative pressure effect.
Preferably, the heating means comprises a radiant microwave heater fixedly provided on an outer side wall of the cylinder. The radiation type microwave heater not only can provide a heat source, but also can loosen and porous bulk materials, is easier to grind and fine, greatly reduces the production cost, and can stop when dehydration and dehumidification reach the specified water content, and is convenient to operate.
Preferably, the number of the radiant microwave heaters is plural, and the plural radiant microwave heaters are arranged on the outer side wall of the cylinder at intervals. The utility model adopts microwaves to provide heat sources, does not consume fossil energy sources, does not generate harmful gases, and is green, clean and environment-friendly. Because the microwave drying technology does not need heat conduction, heat can be generated from the interior of the bulk material, and the moisture in the bulk material and the moisture outside the bulk material are heated simultaneously, the temperature of the bulk material is in low outside and high inside distribution, and huge pressure difference is generated after the moisture is heated and vaporized, so that the formed driving force enables the moisture to be quickly transferred from the interior of the bulk material to the outside.
Preferably, the negative pressure mechanism comprises a vacuum pump, a vacuum tank and a water accumulation tank, wherein the vacuum pump is communicated with the vacuum tank through a vacuum pipeline, a water outlet of the vacuum tank is connected with the water accumulation tank, and an extraction opening of the vacuum tank is connected with the cone bucket. The negative pressure mechanism can automatically recycle according to temperature and humidity pressure data and vacuum negative pressure values, and automatically carry out vacuum negative pressure air entraining.
Preferably, the number of the negative pressure mechanisms is two, and the air outlets of the two negative pressure mechanisms are communicated with the cone bucket. Through being provided with two negative pressure mechanisms, both can be according to the automatic cyclic utilization of humiture pressure data list, also can two simultaneously coordinated automatic control, carry out vacuum negative pressure diversion bleed air.
Preferably, the device further comprises a disc discharging machine, wherein the disc discharging machine is connected with a discharging hole of the cone hopper. When the disc rotates, the materials in the bin move along with the disc and move to one side of the discharge port, the materials are discharged through the gate or the scraper, the discharge amount can be regulated by the scraper device or the gate, the operation is convenient, and the use efficiency is high.
Preferably, a pneumatic knocking hammer is fixedly arranged on the outer side wall of the cone bucket. The pneumatic knocking hammer can vibrate when discharging materials, so that the condensed wet materials are vibrated to be loose and convenient to discharge, and the discharging efficiency is improved.
Preferably, the tank cover is provided with a detection device for detecting temperature, humidity and pressure. And regulating the operation of each mechanism at any time according to the detected temperature, humidity and pressure in the material storage tank.
Drawings
FIG. 1 is a schematic diagram of a bulk material dewatering and dehumidifying apparatus of the present utility model;
fig. 2 is an enlarged schematic view of the structure at a in fig. 1.
In the figure:
1. a material storage bin; 2. a negative pressure mechanism; 3. a heating mechanism; 11. a can lid; 12. a cylinder; 13. a cone bucket; 14. a feed inlet; 15. a grate plate; 16. a water filtering plate; 17. a drainage channel; 18. a water filtering valve; 19. a discharge port; 21. a vacuum pump; 22. a vacuum tank; 23. a water accumulation tank; 4. pneumatically knocking a hammer; 5. and a detection device.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
As shown in fig. 1 and 2, a bulk material dehydration and dehumidification apparatus includes,
the material storage bin 1: the device is used for placing materials to be dehydrated and dehumidified;
negative pressure mechanism 2: the vacuum mechanism 22 is communicated with the material storage bin 1;
and a heat supply mechanism 3: the heat supply mechanism 3 is used for providing a heat source and rapidly dehydrating and dehumidifying the materials to be dehydrated and dehumidified, and is fixedly arranged on the material storage bin 1.
According to the utility model, through the arrangement of the negative pressure mechanism 2, the material storage bin 1 can be subjected to gas pumping, so that the material storage bin 1 is in a negative pressure environment, moisture in the material can permeate from the inside to the outside, and the material can be rapidly dehydrated and dehumidified in the negative pressure high temperature environment through the heat supply mechanism arranged around the material storage bin 1.
In this embodiment, the material storage bin 1 comprises upper portion, middle part and lower part, and the upper portion of material storage bin 1 is tank cover 11, and the middle part of material storage bin 1 is the drum 12 that both ends all are provided with the opening, and the lower part of material storage bin 1 is the awl fill 13, is provided with pan feeding mouth 14 on the tank cover 11, and heating mechanism 3 is fixed to be set up on the lateral wall of drum 12, is provided with filtering mechanism on the inside wall of awl fill 13, and awl fill 13 is linked together with negative pressure mechanism 2, and the bottom of awl fill 13 is provided with discharge gate 19.
In this embodiment, the number of the material storage bins 1 is set according to the production line yield, so as to meet the demands of production line storage and material dehydration and dehumidification.
In this embodiment, the filtering mechanism includes a grating plate 15 and a water filtering plate 16 fixedly arranged on the grating plate 15, and the grating plate 15 is fixed with the cone bucket 13, a water draining groove 17 is arranged between the grating plate 15 and the inner side wall of the cone bucket 13, a collecting pipeline communicated with the water draining groove 17 is further arranged outside the material storage bin 1, and a water filtering valve 18 is further arranged between the water draining groove 17 and the collecting pipeline. The gas in the material storage bin and the water in the water slag enter the negative pressure mechanism 2 through the grid plate 15, the water filtering plate 16 and the water filtering valve 18 under the negative pressure effect.
In this embodiment, the heating mechanism 3 includes a radiation type microwave heater fixedly provided on the outer side wall of the cylinder 12. The radiation type microwave heater not only can provide a heat source, but also can loosen and porous bulk materials, is easier to grind and fine, greatly reduces the production cost, and can stop when dehydration and dehumidification reach the specified water content, and is convenient to operate.
It is further preferred that the number of the radiant microwave heaters is plural, and that the plural radiant microwave heaters are provided at intervals on the outer side wall of the cylinder 12. The radiation type microwave heaters are respectively arranged at 3-6 layers of radiation type microwave heaters at different heights around the outside of the cylinder 12 of the material storage bin 1 according to the diameter of the material storage bin 1, 4-8 groups are arranged at different angles on the same layer of the material storage bin 1, and specific numbers are arranged according to the height and the diameter of the material storage bin, so that the requirements of dehydration and dehumidification of materials are met.
In this embodiment, the negative pressure mechanism 2 includes a vacuum pump 21, a vacuum tank 22 and a water tank 23, the vacuum pump 21 is communicated with the vacuum tank 22 through a vacuum pipe, a water outlet of the vacuum tank 22 is connected with the water tank 23, and an extraction opening of the vacuum tank 22 is connected with the cone bucket 13.
Further preferably, the number of the negative pressure mechanisms 2 is two, and the air outlets of the two negative pressure mechanisms 2 are communicated with the cone bucket 13. Through being provided with two negative pressure mechanism 2, both can be according to the automatic cyclic utilization of humiture pressure data list, also can two simultaneously coordinated automatic control, carry out vacuum negative pressure diversion bleed air.
In this embodiment, the device further comprises a disc discharger, and the disc discharger is connected with the discharge port 19 of the cone hopper 13.
In the embodiment, the pneumatic knocking hammer 4 is fixedly arranged on the outer side wall of the cone bucket 13.
In this embodiment, the cover is provided with a detecting device 5 for detecting temperature, humidity and pressure.
The principle of the bulk material dehydration and dehumidification device of the utility model is as follows:
s1, firstly, closing a discharge hole 19 and a discharge device of a material storage bin 1, transporting bulk materials to be dehydrated and dehumidified to the material storage bin 1, and discharging the materials into the material storage bin 1 through a belt;
s2, after bulk materials to be dehydrated and dehumidified are discharged from a feed inlet 14 to a feed bin, closing a bulk material inlet valve to be dehydrated and dehumidified to enable the bulk material inlet valve to be in a closed state, after the material storage bin 1 is filled with the materials in the closed state, sequentially starting a water filtering valve 18 and a vacuum pump 21 to enable the material storage bin 1 to be vacuumized, keeping a certain vacuum negative pressure state, setting the upper limit and the lower limit of the vacuum negative pressure through a control system, continuously keeping the vacuum negative pressure in the material storage bin 1 between the set upper limit and the lower limit, enabling gas and water in water slag in the material storage bin 1 to enter a vacuum negative pressure tank through a grid plate 15, a water filtering plate 16 and the water filtering valve 18 under the negative pressure effect, and then entering a water storage tank 23, and discharging the gas into the atmosphere through the vacuum pump 21 and an exhaust pipe;
s3, starting a microwave radiator to uniformly radiate microwaves to the materials in the material storage bin 1, so as to meet the requirements of dehydration and dehumidification of the materials, and after the microwaves radiate to the materials, evaporating water in the materials under the action of a microwave heat source, accelerating the gas and water in the material storage bin 1 to enter the water accumulation tank 23 and the atmosphere respectively under the action of negative pressure, after the temperature of the material storage bin 1 reaches the upper limit (the upper limit and the lower limit can be set), closing the microwave heat source, continuously keeping the vacuum negative pressure in the material storage bin 1 between the set upper limit and the lower limit, starting the microwave heat source again when the temperature of the material storage bin 1 is reduced to the lower limit, further radiating microwaves to the materials, and circularly carrying out until the water content of the materials in the material storage bin 1 reaches the set requirement.
S4, discharging the materials for later use through a disc discharging machine and a pneumatic knocking hammer 4 after the materials are dehydrated and dehumidified. Although the present disclosure is disclosed above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the utility model.
Claims (9)
1. A bulk material dehydration and dehumidification device is characterized by comprising,
the material storage bin (1): the device is used for placing materials to be dehydrated and dehumidified;
negative pressure mechanism (2): the vacuum storage device is used for vacuumizing the material storage bin (1) to obtain a negative pressure environment, and the negative pressure mechanism (2) is communicated with the material storage bin (1);
heating mechanism (3): the heat supply mechanism (3) is fixedly arranged on the material storage bin (1) and is used for providing a heat source and rapidly dehydrating and dehumidifying materials to be dehydrated and dehumidified;
the utility model provides a material storage bin (1) comprises upper portion, middle part and lower part, the upper portion of material storage bin (1) is tank cap (11), the middle part of material storage bin (1) is both ends and all is provided with open-ended drum (12), the lower part of material storage bin (1) is cone fill (13), be provided with pan feeding mouth (14) on tank cap (11), heating mechanism (3) are fixed to be set up on the lateral wall of drum (12), be provided with filtering mechanism on the inside wall of cone fill (13), just cone fill (13) with negative pressure mechanism (2) are linked together, the bottom of cone fill (13) is provided with discharge gate (19).
2. The bulk material dehydration and dehumidification device as claimed in claim 1, wherein the filtering mechanism comprises a grating plate (15) and a water filtering plate (16) fixedly arranged on the grating plate (15), the grating plate (15) is fixed with the cone hopper (13), a drainage groove (17) is arranged between the grating plate (15) and the inner side wall of the cone hopper (13), a collecting pipeline communicated with the drainage groove (17) is further arranged outside the material storage bin (1), and a water filtering valve (18) is further arranged between the drainage groove (17) and the collecting pipeline.
3. A bulk dewatering and dehumidifying device as claimed in claim 1, wherein the heating means (3) comprises a radiant microwave heater fixedly arranged on the outer side wall of the cylinder (12).
4. A bulk dewatering and dehumidifying device as claimed in claim 3, wherein the number of said radiant microwave heaters is plural and a plurality of said radiant microwave heaters are spaced on the outer side wall of said cylinder (12).
5. The bulk material dehydration and dehumidification device as claimed in claim 1, wherein the negative pressure mechanism (2) comprises a vacuum pump (21), a vacuum tank (22) and a water accumulation tank (23), the vacuum pump (21) is communicated with the vacuum tank (22) through a vacuum pipeline, a water outlet of the vacuum tank (22) is connected with the water accumulation tank (23), and an extraction opening of the vacuum tank (22) is connected with the cone bucket (13).
6. The bulk material dewatering and dehumidifying device as claimed in claim 5, wherein the number of the negative pressure mechanisms (2) is two, and the air outlets of the two negative pressure mechanisms (2) are communicated with the cone hopper (13).
7. The bulk dewatering and dehumidifying device as claimed in claim 1, further comprising a disc discharger connected to the discharge opening (19) of the cone hopper (13).
8. A bulk material dewatering and dehumidifying device as claimed in claim 1, wherein the outer side wall of the cone hopper (13) is fixedly provided with a pneumatic knocking hammer (4).
9. A bulk dewatering and dehumidifying device as claimed in claim 1, wherein the cover (11) is provided with detection means (5) for detecting temperature, humidity and pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320091148.5U CN219624349U (en) | 2023-01-31 | 2023-01-31 | Bulk material dehydration and dehumidification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320091148.5U CN219624349U (en) | 2023-01-31 | 2023-01-31 | Bulk material dehydration and dehumidification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219624349U true CN219624349U (en) | 2023-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320091148.5U Active CN219624349U (en) | 2023-01-31 | 2023-01-31 | Bulk material dehydration and dehumidification device |
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| CN (1) | CN219624349U (en) |
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2023
- 2023-01-31 CN CN202320091148.5U patent/CN219624349U/en active Active
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