CN211246422U - Closed accurate adding system for powdery raw materials of high-tower compound fertilizer - Google Patents
Closed accurate adding system for powdery raw materials of high-tower compound fertilizer Download PDFInfo
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- CN211246422U CN211246422U CN201921936329.3U CN201921936329U CN211246422U CN 211246422 U CN211246422 U CN 211246422U CN 201921936329 U CN201921936329 U CN 201921936329U CN 211246422 U CN211246422 U CN 211246422U
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Abstract
The utility model provides a closed accurate adding system for powdery raw materials of compound fertilizers in a high tower, which comprises a high tower, a feeding device, a conveying device and a feeding device positioned in the high tower; the feeding device is positioned outside the high tower and comprises a feeding bin and an external tower dust removal mechanism; the conveying device is arranged below the feeding device and comprises a metering belt and a first scraper conveyer; the feeding device comprises a bucket elevator and a mixing tank and further comprises an in-tower dust removal mechanism, the powdery raw materials enter the metering belt conveyor from the feeding bin, and the powdery raw materials are conveyed into the mixing tank through the first scraper conveyor and the bucket elevator after being metered. The closed accurate adding system in the utility model has simple integral structure and convenient operation, and during the feeding and loading process of the powdery raw materials, no dust overflows, no raise dust exists on site, and the system is energy-saving and environment-friendly; dust produced in the adding system is timely recovered and supplemented to the production system, raw materials are not lost, and the stability of product nutrients is guaranteed.
Description
Technical Field
The utility model belongs to the technical field of the powder adds equipment, concretely relates to airtight accurate addition system of high tower compound fertilizer powdery raw materials.
Background
Chemical fertilizers are indispensable production raw materials for agriculture and are important means for ensuring agricultural yield increase, and high-quality chemical fertilizers are necessary for meeting agricultural and market demands. The high tower granulation compound fertilizer technology is a production process successfully researched and developed in the United states in the last 70 th century, and high tower granulation is adopted to produce high-quality compound fertilizer, and the performance of the compound fertilizer is far superior to that of other chemical fertilizers. In recent years, the production process of high-tower compound fertilizers is in the rise in China, and the high-tower compound fertilizers produced by the novel process are popular to more and more farmers, especially professional planting farmers, due to the advantages of stable nutrients, good fertilizer efficiency, mellow appearance, difficulty in hardening, difficulty in imitating and the like, and gradually become mainstream products in the compound fertilizer market.
At present, the existing solid raw material adding mode for producing compound fertilizer by high towers in China generally adopts the steps that powdery raw materials are poured into a metering bin, and are fed into a mixing tank in a tower through a series of conveying devices after metering, so that the defects of on-site dust emission, raw material loss and insufficient prepared product nutrients exist in the whole process of adding the solid raw materials into the mixing tank.
Therefore, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
Disclosure of Invention
The utility model aims at providing an airtight accurate addition system of high tower compound fertilizer's likepowder raw materials to at least, in solving high tower compound fertilizer production, likepowder raw materials throws the material dust and does not have excessive, in the compounding groove that drops into compound fertilizer production that can be accurate, and the raise dust that the powder produced can in time be retrieved and supply to production system, makes the raw materials lossless, has guaranteed product quality's stability.
In order to achieve the above object, the present invention provides the following technical solutions:
a closed accurate adding system for powdery raw materials of compound fertilizers in a high tower comprises the high tower, a feeding device, a conveying device and a feeding device positioned in the high tower;
the feeding device is positioned outside the high tower and comprises a feeding bin, a first discharging port is formed in the bottom end of the feeding bin, and a first sealing cover is mounted at the top end of the feeding bin; the top end of the first sealing cover is provided with a first feeding hole; a ton bag is sleeved at the first feeding port;
the conveying device is arranged below the feeding device and comprises a metering belt and a first scraper conveyer, a second sealing cover is arranged outside the metering belt, and the front end of the metering belt is positioned below the first discharge hole and used for continuously and dynamically metering powder flowing on the belt conveyer; the rear end of the metering belt is connected with the first scraper conveyer, the first scraper conveyer is of a closed structure, a second feeding hole and a second discharging hole are formed in the front end and the rear end of the first scraper conveyer respectively, and powder enters the scraper conveyer through the second feeding hole;
the feeding device comprises a bucket elevator and a mixing tank, the bucket elevator is vertically arranged on the side wall in the high tower, a third feeding port is formed in the lower portion of the bucket elevator, a third discharging port is formed in the upper portion of the bucket elevator, the third feeding port is formed in the outer portion of the high tower and communicated with the second discharging port, and powder enters the bucket elevator from the second discharging port and is conveyed to the mixing tank from the third discharging port.
As the preferable scheme, the ton bag is lifted by the movable travelling crane mechanism to move, the bottom of the ton bag is provided with the movable tying opening, the tying opening is sleeved in the first feeding opening, and powder can be poured into the feeding bin through the first feeding opening.
As an optimal scheme, the feeding device further comprises a second scraper conveyer for conveying powder, the inlet end of the second scraper conveyer is connected with the third discharge port of the bucket elevator through a feeding pipe in a flange mode, and the outlet end of the second scraper conveyer conveys the powder into the mixing groove through a feeding pipe.
As an optimized scheme, the metering belt is in sealing arrangement with the joint of the second feeding hole, and the joint of the second discharging hole and the third feeding hole is in sealing arrangement.
The closed accurate adding system for the powdery raw materials of the high-tower compound fertilizer is characterized in that the feeding device further comprises an outer-tower dust removal mechanism which is communicated with the upper side wall of the first sealing cover through a negative pressure pipe and is used for recovering dust in the feeding bin;
the feeding device further comprises an in-tower dust removal mechanism which is communicated with the second feeding hole, the second discharging hole and the third discharging hole through a negative pressure pipe and used for recovering dust in the conveying device and the feeding device.
According to the closed accurate adding system for the powdery raw materials of the high-tower compound fertilizer, as a preferred scheme, the dust removing mechanism outside the tower and the dust removing mechanism inside the tower both comprise the pulse bag type dust collector and the fan, the pulse bag type dust collector comprises the air purifying chamber, a plurality of dust removing bags are arranged below the air purifying chamber, the bottoms of the dust removing bags are respectively connected with the ash hoppers, and the ash hoppers are used for recovering powder;
the dust removal bag of the dust removal mechanism outside the tower is communicated with the first sealing cover through a negative pressure pipe; the air inlet of the fan is communicated with the air purifying chamber, and the air outlet of the fan is connected with an exhaust pipe, so that the first sealing cover is in a micro negative pressure state.
According to the closed accurate adding system for the powdery raw materials of the high-tower compound fertilizer, as a preferred scheme, the dust removal bag of the dust removal mechanism in the tower is communicated with the second feeding hole, the second discharging hole and the third discharging hole through negative pressure pipes; the air inlet of the fan is communicated with the air purifying chamber, and the air outlet of the fan is connected with an exhaust pipe, so that the first scraper conveyor and the feeding device are in a micro negative pressure state.
According to the closed accurate adding system for the powdery raw materials of the high-tower compound fertilizer, as an optimal scheme, the bottom of the dust removal mechanism outside the tower is provided with the screw conveyor outside the tower, one end of the screw conveyor outside the tower is communicated with the bottom of the dust removal mechanism outside the tower, and the other end of the screw conveyor outside the tower is communicated with the first sealing cover and used for sending the recovered powder back to the feeding bin.
According to the closed accurate adding system for the powdery raw materials of the high-tower compound fertilizer, as a preferred scheme, the bottom of the dust removal mechanism in the tower is communicated with the spiral conveyer in the tower, one end of the spiral conveyer in the tower is communicated with the dust removal mechanism in the tower, and the other end of the spiral conveyer in the tower is communicated with the mixing groove and is used for sending the recovered powder back to the mixing groove.
According to the closed accurate adding system for the powdery raw materials of the high-tower compound fertilizer, as a preferred scheme, the spiral conveyor outside the tower and the spiral conveyor inside the tower are of closed structures.
Compared with the closest prior art, the utility model provides a technical scheme has following excellent effect:
the utility model adopts the mode of ton bag feeding, the first sealing cover is arranged on the feeding bin, the side port of the first sealing cover is a micro-negative pressure dust removing system consisting of the pulse bag type dust remover and the fan, the first sealing cover is maintained in a micro-negative pressure state, and dust removed by the pulse bag type dust remover is sent back to the feeding bin through the closed spiral conveyor, thereby ensuring that no leakage exists in the feeding of the powdery raw material and the operation site is clean and environment-friendly;
the utility model provides a powdery raw material gets into measurement belt conveyor from throwing the feed bin, after the measurement, carry the interior mixing tank of tower through scraper conveyor conveyer and bucket elevator, the dust that produces on the whole conveying path and in the mixing tank passes through the little negative pressure system that fan and pulse bag dust collector constitute, it is excessive to keep there being no dust in the whole in-process, powdery raw material drops into the mixing tank of compound fertilizer production accurately, and the dust that pulse bag dust collector collected is carried to the mixing tank through the auger delivery ware again, collect the powder of loss, replenish in the production system, the product nutrient who has guaranteed to produce is stable;
the closed accurate adding system in the utility model has simple integral structure and convenient operation, and during the feeding and loading process of the powdery raw materials, no dust overflows, no raise dust exists on site, and the system is energy-saving and environment-friendly; dust produced in the adding system is timely recovered and supplemented to the production system, raw materials are not lost, and the stability of product nutrients is guaranteed.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. Wherein:
FIG. 1 is a schematic structural diagram of an addition system according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a feeding device in an embodiment of the present invention;
fig. 3 is a schematic structural view of a conveying device according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a feeding device in an embodiment of the present invention;
fig. 5 is a schematic structural view of a dust removing mechanism in a tower according to an embodiment of the present invention.
In the figure: 1. a feeding device; 11. a feeding bin; 12. a first seal cover; 13. a first feed port; 14. a first discharge port; 15. bagging by ton; 151. tying; 16. a mobile travelling mechanism; 161. a hook; 2. a conveying device; 21. a metering belt; 211. a second seal cap; 22. a first scraper conveyor; 221. a second feed port; 222. a second discharge port; 3. a feeding device; 31. a mixing tank; 32. a bucket elevator; 321. a third feed inlet; 322. a third discharge port; 323. a hopper; 33. feeding pipes; 34. a second scraper conveyor; 35. a discharge pipe; 4. a dust removal mechanism outside the tower; 5. an external tower screw conveyor; 6. a dust removal mechanism in the tower; 61. a pulse bag type dust collector; 611. a gas purifying chamber; 612. a dust removal bag; 613. an ash hopper; 62. a fan; 7. an in-tower spiral conveyor; 8. and (4) high towers.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
In the description of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and do not require that the present invention must be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense, and may be, for example, either fixed or detachable; they may be directly connected or indirectly connected through intermediate members, and specific meanings of the above terms will be understood by those skilled in the art as appropriate.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
As shown in figures 1-5, the utility model provides a closed accurate addition system of high tower compound fertilizer powdery raw materials, as shown in figure 1, the addition system includes high tower 8, still including throwing material device 1, conveyor 2 and being located the inside loading attachment 3 of high tower 8.
As shown in fig. 2, the structural schematic diagram of the feeding device 1 in the embodiment of the present invention, the feeding device 1 is located outside the high tower 8, the feeding device 1 includes the feeding bin 11, the bottom of the feeding bin 11 is a conical structure, the bottom of the feeding bin 11 is provided with a first discharge hole 14, and the top end of the feeding bin 11 is provided with a first sealing cover 12. A first feeding hole 13 is formed at the top end of the first sealing cover 12; the first feed inlet 13 is sleeved with a ton bag 15.
The ton bag 15 is filled with ton bag solid powder, namely the ton bag 15 is filled with compound fertilizer powdery raw materials, and the ton bag 15 is lifted by the movable travelling mechanism 16.
In the embodiment of the present invention, the ton bag 15 is lifted and moved by the movable traveling crane 16, a lifting hook 161 is disposed below the movable traveling crane 16, and the lifting hook 161 is used for lifting the ton bag 15; the bottom of ton bag 15 is equipped with the activity and pricks mouthful 151, adopts and pricks the ejection of compact mode ejection of compact that mouthful 151 department stay cord knot was buckled, pricks mouthful 151 cover and locates in first feed inlet 13, and the powder accessible is poured into in throwing feed bin 11 to the first feed inlet 13.
In practical applications, a vibrator can be installed on the conical structure at the bottom of the feeding bin 11 to facilitate the flow of the material, and a screening system can be installed in the feeding bin 11 to prevent the agglomerated powder from blocking the first discharge port 14.
The utility model discloses in the embodiment, throw material device 1 and still include the outer dust removal mechanism 4 of tower, the outer dust removal mechanism 4 of tower is through the upper portion lateral wall intercommunication of negative pressure pipe with first sealed cowling 12 for the dust in the feed bin 11 is thrown in the recovery.
The utility model discloses in the concrete embodiment, dust removal mechanism 4 includes pulse bag collector 61 and fan 62 outside the tower, and pulse bag collector 61 includes air-purifying chamber 611, is provided with a plurality of dust bags 612 below air-purifying chamber 611, and the bottom of dust bags 612 is connected with ash bucket 613 respectively, and ash bucket 613 is used for retrieving the powder. In practical application, after the dust enters the filter bag, the dust with larger particles directly falls into the dust hopper 613, the dust is filtered by the filter bag, the dust flows on the surface of the filter bag in a choked manner, clean gas enters the air purifying chamber 611 and is discharged through the fan 62, when the dust on the surface of the filter bag is continuously increased, the filter bag is blown to remove ash, the filter bag is suddenly expanded, and the dust attached to the surface of the filter bag falls off and enters the dust hopper 613 under the action of reverse airflow.
In the embodiment of the present invention, the dust removing bag 612 of the tower external dust removing mechanism 4 is communicated with the first sealing cover 12 through the negative pressure pipe; an air inlet of the fan 62 is communicated with the air purifying chamber 611, and an air outlet of the fan 62 is connected with an exhaust pipe, so that the first sealing cover 12 is in a micro negative pressure state. The negative pressure is other pressure states lower than the normal pressure, the micro negative pressure is very small negative pressure, the air exhaust volume in the first sealing cover 12 is larger than the air intake volume, and the first sealing cover 12 is in a micro negative pressure state.
In the embodiment of the utility model, the bottom of the outer dust removal mechanism 4 of tower is equipped with the outer auger delivery ware 5 of tower, and the one end of the outer auger delivery ware 5 of tower communicates with the bottom of the outer dust removal mechanism 4 of tower, and the other end communicates with first sealed cowling 12 for send the powder of retrieving back to and throw in the feed bin 11.
In the embodiment of the utility model, the screw conveyor 5 outside the tower is of a closed structure, the powder is conveyed by a horizontal screw, when the powder is added into the screw conveyor 5 outside the tower, the powder accumulated at the lower part of the inner wall of the screw conveyor 5 outside the tower continuously rotates along with the screw due to the gravity of the powder and the friction force between the powder and the inner wall of the shell of the screw conveyor 5 outside the tower, and only moves forwards under the pushing of the rotating helical blade, so as to achieve the purpose of conveying the powder; the powder recovered in the ash hopper 613 enters the screw conveyor 5 outside the tower, and then the recovered powder is returned to the charging bin 11 again to replenish the lost powder to the production system.
As shown in fig. 3, for the structural schematic diagram of the conveying device 2 in the embodiment of the present invention, the conveying device 2 is disposed below the feeding device 1, the conveying device 2 includes a metering belt 21 and a first scraper conveyor 22, a second sealing cover 211 is disposed outside the metering belt 21, and the front end of the metering belt 21 is located at the first discharge port 14 for continuously and dynamically metering the powder flowing on the belt conveyor. Metering belt 21 has measurement and transportation function simultaneously, and second sealed cowling 211 is fixed steel sheet, and the border of second sealed cowling 211 adopts the rubber belt soft seal for prevent that the dust is excessive, and in the practical application, the terminal unloading department of metering belt 21 is equipped with scrapes the glassware, scrapes the glassware and is arranged in guaranteeing that the powder on the metering belt 21 can all be expected to first scraper conveyor 22 in. The rear end of the metering belt 21 is connected with the first scraper conveyor 22, the first scraper conveyor 22 is of a closed structure, the front end and the rear end of the first scraper conveyor 22 are respectively provided with a second feeding hole 221 and a second discharging hole 222, and powder enters the scraper conveyor through the second feeding hole 221. The periphery of first scraper conveyor 22 also adopts fixed steel sheet to seal, and first scraper conveyor 22 includes drive arrangement, head, interlude, afterbody and scraper chain, and the head pulley of head links to each other with drive arrangement, is equipped with the tailwheel in the afterbody, and the scraper chain overlaps respectively on the track of corresponding head pulley and tailwheel. The second feeding hole 221 is located at the upper opening of the tail of the first scraper conveyor 22, the second discharging hole 222 is located at the side opening of the head of the first scraper conveyor 22, the first scraper conveyor 22 is continuous conveying equipment for conveying materials by means of a moving scraper chain, and the scraper chain is completely buried in the materials in the whole conveying process.
In the embodiment of the present invention, the joint of the metering belt 21 and the second feeding hole 221 is sealed, and the joint of the second discharging hole 221 and the third feeding hole 321 is sealed.
In practical application, the first scraper conveyer 22 can be used not only in horizontal conveying, but also in inclined or vertical conveying, and can be used in a single machine or in a combined way.
As shown in fig. 3 and 4, the feeding device 3 includes a bucket elevator 32 and a mixing tank 31, the bucket elevator 32 is vertically disposed on a side wall inside the tower 8, a third feeding port 321 is disposed at a lower portion of the bucket elevator 32, a third discharging port 322 is disposed at an upper portion of the bucket elevator 32, the third feeding port 321 is disposed outside the tower 8 and is communicated with the second discharging port 222, and the powder enters the bucket elevator 32 from the second discharging port 222 and is then conveyed into the mixing tank 31 from the third feeding port 321.
In the embodiment of the present invention, the bucket elevator 32 is communicated with the second scraper conveyor 34 through the feeding pipe 33, one end of the feeding pipe 33 is flange-connected to the third discharging port 322, the other end is flange-connected to the inlet end of the second scraper conveyor 34, and the powder material enters the second scraper conveyor 34 through the feeding pipe 33 from the third discharging port 322; the outlet end of the second scraper conveyor 34 conveys the powder material into the mixing bowl 31 via a feed pipe 35. The feeding pipe 33 is a special pipe, and the size of the inlet and the size of the outlet are not consistent, and generally, the inlet of the feeding pipe 33 is larger than the outlet, so that powder can enter the feeding pipe 33 from the third discharge hole 322; the second scraper conveyor 35 and the first scraper conveyor 22 are the same type of equipment, and the structures of the two are the same.
A feeding pipe 35 is arranged between the second scraper conveyer 34 and the mixing groove 31, one end of the feeding pipe 35 is communicated with the outlet of the second scraper conveyer 34, the other end of the feeding pipe 35 is inserted into the mixing groove 31, and powder is conveyed into the mixing groove 31 through the discharging pipe 35. The end of the feed pipe 35 inserted into the mixing trough 31 is close to the central axis of the mixing trough, so as to ensure that the powder is conveyed from the feed pipe 35 to the stirring shaft of the mixing trough 31, and the powder is mixed more uniformly in the mixing trough 31. In the embodiment of the present invention, a plurality of hoppers 323 are disposed in the bucket elevator 32, and the hoppers 323 convey the powder from the bottom to the top. In practical application, the bucket elevator 32 comprises a shell, a conveying chain, a hopper 323, a head wheel, a tail wheel, a third feeding port 321 and a third discharging port 322, and the bucket elevator 32 is a continuous conveying machine for vertically lifting materials by utilizing a series of hoppers 323 uniformly and fixedly connected to the conveying chain; the hopper 323 lifts the powder to the top along with the conveying chain, the hopper 323 turns downwards after bypassing the tail wheel, and the bucket elevator 32 pours the powder into the mixing tank 31; the outer part of the bucket elevator 32 is provided with a shell to prevent dust from flying in the conveying process.
The utility model discloses in the embodiment, loading attachment 3 still includes dust removal mechanism 6 in the tower, and dust removal mechanism 6 all communicates through negative pressure pipe and second feed inlet 221, second discharge gate 222 and third discharge gate 322 in the tower for retrieve the dust in conveyor 2 and the loading attachment 3.
The utility model discloses in the concrete embodiment, dust removal mechanism 6 all includes pulse bag collector 61 and fan 62 in the tower, and pulse bag collector 61 includes air-purifying chamber 611, and the air-purifying chamber 611 below is provided with a plurality of dust bags 612, and the bottom of dust bags 612 is connected with ash bucket 613 respectively, and ash bucket 613 is used for retrieving the powder.
In the embodiment of the present invention, the dust removing bag 612 of the dust removing mechanism 6 in the tower is communicated with the second feeding hole 221, the second discharging hole 222 and the third discharging hole 322 through the negative pressure pipe; the air inlet of the fan 62 is communicated with the air purifying chamber 611, and the air outlet of the fan 62 is connected with an exhaust pipe, so that the first scraper conveyor 22 and the feeding device 3 are in a micro-negative pressure state, and no dust overflow in the whole feeding process is ensured.
In the embodiment of the utility model, the bottom of the dust removing mechanism 6 in the tower is communicated with the spiral conveyer 7 in the tower, and the spiral conveyer 7 in the tower is of a closed structure; one end of the spiral conveyer 7 in the tower is communicated with the dust removing mechanism 6 in the tower, and the other end is communicated with the mixing groove 31, so that the recovered powder is sent back to the mixing groove 31, the loss materials after metering are collected and supplemented to a production system, and the stability of product nutrients is ensured.
To sum up, the utility model adopts the ton bag form, the ton bag is hoisted by the movable travelling crane, the ton bag adopts the lower opening stay cord tripping discharging mode, when the ton bag is placed at the first feeding hole of the first sealing cover above the feeding bin, the stay cord is untied instantly, the powder is poured into the feeding bin, the side wall of the upper part of the first sealing cover is provided with a micro-negative pressure dust removing system by a pulse bag type dust remover and a fan, the micro-negative pressure state of the first sealing cover is maintained, the dust is sent back to the feeding bin by a spiral conveyer outside the tower, the feeding sealing of the solid powder is ensured, the operation site is clean and environment-friendly; the powder enters a metering belt from a feeding bin, after metering, the powder is conveyed to a bucket elevator by a belt and a first scraper conveyor and then conveyed to a mixing tank in a high tower, dust generated on a conveying path and in the mixing tank is kept to be free from dust overflow in the process through a micro negative pressure system consisting of a pulse bag type dust collector and a fan, the collected dust is conveyed to the mixing tank through a sealed spiral conveyor, the powder lost after metering is collected and supplemented to a production system, and the stability of product nutrients is ensured.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as the following claims are intended to cover all modifications, equivalents, and improvements falling within the spirit and principles of the present invention.
Claims (9)
1. A closed accurate adding system for powdery raw materials of compound fertilizers in a high tower comprises the high tower, and is characterized by further comprising a feeding device, a conveying device and a feeding device positioned in the high tower;
the feeding device is positioned outside the high tower and comprises a feeding bin, a first discharging port is formed in the bottom end of the feeding bin, and a first sealing cover is mounted at the top end of the feeding bin; the top end of the first sealing cover is provided with a first feeding hole; a ton bag is sleeved at the first feeding port;
the conveying device is arranged below the feeding device and comprises a metering belt and a first scraper conveyer, a second sealing cover is arranged outside the metering belt, and the front end of the metering belt is positioned below the first discharge hole and used for continuously and dynamically metering powder flowing on the belt conveyer; the rear end of the metering belt is connected with the first scraper conveyer, the first scraper conveyer is of a closed structure, a second feeding hole and a second discharging hole are formed in the front end and the rear end of the first scraper conveyer respectively, and powder enters the first scraper conveyer through the second feeding hole;
the feeding device comprises a bucket elevator and a mixing tank, the bucket elevator is vertically arranged on the side wall in the high tower, a third feeding port is formed in the lower portion of the bucket elevator, a third discharging port is formed in the upper portion of the bucket elevator, the third feeding port is formed in the outer portion of the high tower and communicated with the second discharging port, and powder enters the bucket elevator from the second discharging port and is conveyed to the mixing tank from the third discharging port.
2. The closed accurate adding system for powdery raw materials of high tower compound fertilizers according to claim 1, wherein the ton bag is hoisted and moved by a movable traveling crane, a movable tying opening is arranged at the bottom of the ton bag, the tying opening is sleeved in the first feeding opening, and powder can be poured into the feeding bin through the first feeding opening.
3. The closed accurate adding system for high tower compound fertilizer powdery raw materials as claimed in claim 1, characterized in that said feeding device further comprises a second scraper conveyor for conveying the powder, an inlet end of said second scraper conveyor is connected with said third discharge port of said bucket elevator by a feeding pipe via a flange, and an outlet end of said second scraper conveyor conveys the powder into said mixing trough via a feeding pipe.
4. The closed accurate adding system for the powdery raw materials of the high tower compound fertilizer as claimed in any one of claims 1 to 3, wherein the joint of the metering belt and the second feeding port is hermetically arranged, and the joint of the second discharging port and the third feeding port is hermetically arranged.
5. The closed accurate adding system for high tower compound fertilizer powdery raw materials as claimed in claim 4, wherein the feeding device further comprises an external dust removing mechanism which is communicated with the upper side wall of the first sealing cover through a negative pressure pipe and is used for recovering dust in the feeding bin;
the feeding device further comprises an in-tower dust removal mechanism which is communicated with the second feeding hole, the second discharging hole and the third discharging hole through a negative pressure pipe and used for recovering dust in the conveying device and the feeding device.
6. The closed accurate adding system for the powdery raw materials of the high tower compound fertilizer as claimed in claim 5, wherein the dust removing mechanism outside the tower and the dust removing mechanism inside the tower both comprise a pulse bag type dust collector and a fan, the pulse bag type dust collector comprises an air purifying chamber, a plurality of dust removing bags are arranged below the air purifying chamber, the bottoms of the dust removing bags are respectively connected with an ash hopper, and the ash hopper is used for recovering powder;
the dust removal bag of the dust removal mechanism outside the tower is communicated with the first sealing cover through a negative pressure pipe; the air inlet of the fan is communicated with the air purifying chamber, and the air outlet of the fan is connected with an exhaust pipe, so that the first sealing cover is in a micro negative pressure state.
7. The closed accurate adding system for high tower compound fertilizer powdery raw materials according to claim 6, characterized in that the dust removal bag of the dust removal mechanism in the tower is communicated with the second feeding hole, the second discharging hole and the third discharging hole through negative pressure pipes.
8. The closed accurate adding system for high tower compound fertilizer powdery raw materials as claimed in claim 6, characterized in that an outer tower screw conveyor is arranged at the bottom of the outer tower dust removing mechanism, one end of the outer tower screw conveyor is communicated with the bottom of the outer tower dust removing mechanism, and the other end is communicated with the first sealing cover, and is used for returning the recovered powder to the feeding bin; the spiral conveyor outside the tower is of a closed structure.
9. The closed accurate adding system for high tower compound fertilizer powdery raw materials as claimed in claim 7, characterized in that the bottom of the dust removing mechanism in the tower is communicated with the spiral conveyer in the tower, one end of the spiral conveyer in the tower is communicated with the dust removing mechanism in the tower, and the other end is communicated with the mixing groove for returning the recovered powder to the mixing groove; the spiral conveyor in the tower is of a closed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921936329.3U CN211246422U (en) | 2019-11-11 | 2019-11-11 | Closed accurate adding system for powdery raw materials of high-tower compound fertilizer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921936329.3U CN211246422U (en) | 2019-11-11 | 2019-11-11 | Closed accurate adding system for powdery raw materials of high-tower compound fertilizer |
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| CN211246422U true CN211246422U (en) | 2020-08-14 |
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| CN201921936329.3U Active CN211246422U (en) | 2019-11-11 | 2019-11-11 | Closed accurate adding system for powdery raw materials of high-tower compound fertilizer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115090207A (en) * | 2022-07-07 | 2022-09-23 | 何涛 | Batching device and method for powder coating production |
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2019
- 2019-11-11 CN CN201921936329.3U patent/CN211246422U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115090207A (en) * | 2022-07-07 | 2022-09-23 | 何涛 | Batching device and method for powder coating production |
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