Batching dust removal device

Abstract

The utility model relates to the technical field of chemical fertilizer production equipment, and particularly discloses a batching dust removal device which comprises a dust remover, a hopper, a dust collection mechanism and a quantitative feeding mechanism, two or more hoppers are arranged around the periphery of the dust remover; a dust collecting mechanism is arranged at a feeding port above the hopper, and a quantitative feeding mechanism is arranged below the hopper. The dust collecting mechanism, the first dust collecting cover and the second dust collecting cover are arranged at the position where material dust is possibly raised to control dust, the material dust is adsorbed through negative pressure generated by the dust remover, the effect of preventing the material dust from diffusing is achieved, meanwhile, the feeder and the weighing belt are further arranged, and the material can be conveniently and rapidly discharged by controlling the discharging speed of the material from the hopper. Weighing and automatic batching of various materials are achieved, the labor intensity of workers is reduced, and the production efficiency is improved.

Description

Technical field:

[0001] The utility model relates to the technical field of fertilizer production equipment, in particular to a batching dust removal device. Background technology:

[0002] In the production process of compound fertilizer, various raw materials generally need to be compounded and extruded into granules. Therefore, the raw materials needed are generally in powder form. The first step of the production process requires weighing and mixing various raw materials. Usually, the bagged powdered raw materials need to be manually fed into the hopper through the feeding port. During the feeding process, the raw materials falling into the hopper will be squeezed and collided with the air in the hopper, which can easily stir up a large amount of material dust, making the working environment at the operation site relatively harsh. Not only will it cause harm to the health of the operators, but the dust of some combustible raw materials also poses the risk of dust explosion.

[0003] In addition, manual weighing of ingredients is cumbersome and inefficient, and cannot meet the needs of continuous production. Utility model content:

[0004] The utility model aims to provide a batching dust removal device to solve the problem of large dust in the batching process in the prior art.

[0005] The utility model is implemented by the following technical scheme: a batching dust removal device, comprising: a dust collector, a hopper, a dust collecting mechanism and a quantitative feeding mechanism; two or more hoppers are arranged around the dust collector; the quantitative feeding mechanism comprises a feeder and a weighing belt, the feed port of the feeder is sealed and connected with the discharge port of the hopper, a weighing belt is arranged below each hopper, the discharge port of the feeder is placed above the position of the weighing belt head, an aggregate chute is arranged below the dust collector, the tail of each weighing belt is placed above the feed port of the aggregate chute, and the discharge port at the bottom of the dust collector is sealed and connected with the aggregate chute; the dust collecting mechanism comprises a baffle plate and a dust collector, three baffle plates are arranged on the end edge of the feeding port at the top of the hopper, a dust collector is arranged on the top end edge of the middle baffle plate, the dust collector comprises a shell, an arc-shaped air inlet is opened on the shell facing the hopper side, a plurality of partitions are arranged at the arc-shaped air inlet and in the inner cavity of the shell of the dust collector, and the inner cavity of the dust collector is connected with the air inlet of the dust collector through a pipeline.

[0006] Furthermore, a first dust hood is provided at the discharge port of the feeder, the upper end of the first dust hood is sealed and connected to the outer wall of the feeder, and the inner cavity of the first dust hood is connected to the air inlet of the dust collector through a pipeline.

[0007] Furthermore, a second dust hood is provided on the top of the aggregate chute, the bottom of the second dust hood is sealed and connected to the top of the aggregate chute, a feed port corresponding to the position of the weighing belt is opened on the side wall of the second dust hood, and the inner cavity of the second dust hood is connected to the air inlet of the dust collector through a pipe.

[0008] Furthermore, butterfly valves are respectively provided on the pipelines connecting the dust collecting mechanism, the first dust collecting hood, the second dust collecting hood and the dust collector.

[0009] Furthermore, the feeder includes: a casing, an impeller and a speed regulating motor. The impeller is rotatably arranged in the casing, the blade edge of the impeller abuts against the inner wall of the casing, and the output shaft of the speed regulating motor is fixedly connected to the central axis of the impeller.

[0010] Furthermore, it also includes a debris blocking net, which is arranged in the feeding port of the hopper and is detachably connected to the inner wall of the hopper.

[0011] The advantages of the utility model are as follows: dust is controlled by arranging a dust collecting mechanism, a first dust collecting hood and a second dust collecting hood at places where material dust may be generated, and the material dust is adsorbed by the negative pressure generated by the dust collector to prevent the material dust from spreading. At the same time, a feeder and a weighing belt are also provided, and the speed of unloading the material from the hopper can be controlled to realize the weighing and automatic batching of various materials, thereby reducing the labor intensity of personnel and improving production efficiency. Description of the drawings:

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Figure 2 It is a schematic diagram of the local structure of the quantitative feeding mechanism.

[0014] Figure 3 It is a schematic diagram of the local structure of the first dust collecting hood and the second dust collecting hood.

[0015] Figure 4 It is a schematic diagram of the local structure of the dust collecting mechanism.

[0016] In the figure: dust collector 1, hopper 2, dust collecting mechanism 3, quantitative feeding mechanism 4, collecting chute 5, first dust collecting cover 6, second dust collecting cover 7, butterfly valve 8, debris screen 9, discharge port 101, air inlet 102, baffle plate 301, housing 302, arc-shaped air inlet 303, partition 304, feeder 401, weighing belt 402, housing 403, impeller 404, speed regulating motor 405 Specific implementation method:

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In the description of the present invention, it should be noted that the terms "center", "up", "down", "front", "back", "top", "bottom", "left", "right", "vertical", "horizontal", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0019] like Figure 1 As shown: a batching dust removal device, comprising: a dust collector 1, a hopper 2, a dust collecting mechanism 3 and a quantitative feeding mechanism 4; three hoppers 2 are arranged around the dust collector 1, and the hoppers 2 are used to temporarily store the input materials; a barrier net 9 is arranged in the feeding port of the hopper 2, and the barrier net 9 serves to intercept debris such as material bags and prevent people from falling. The barrier net 9 is detachably connected to the inner wall of the hopper 2 by bolts, and the bolts can be removed for maintenance when cleaning and maintenance are required.

[0020] like Figure 2 , Figure 3 As shown: the quantitative feeding mechanism 4 includes a feeder 401 and a weighing belt 402. The feeder 401 is a rotary feeder. The feeder 401 includes: a casing 403, an impeller 404 and a speed regulating motor 405. The impeller 404 is rotatably arranged in the casing 403. The blade edge of the impeller 404 abuts against the inner wall of the casing 403. The output shaft of the speed regulating motor 405 is fixedly connected to the central axis of the impeller 404. The feeder 401 can control the discharging speed of the upper hopper 2 by controlling the rotation speed of the speed regulating motor 405. The feed port of the feeder 401 is sealed with the discharging port of the hopper 2. A weighing belt 402 is arranged under each hopper 2. The weighing belt 402 can monitor the weight of the material falling on its belt surface and adjust the feeding speed by the speed of the belt. The discharge port of the feeder 401 is placed above the head position of the weighing belt 402, and an aggregate chute 5 is provided below the dust collector 1. The tail of each weighing belt 402 is placed above the feed port of the aggregate chute 5. The materials discharged from each hopper 2 fall into the aggregate chute 5 from the tail of the weighing belt 402. The aggregate chute 5 collects various quantitatively configured materials and transfers them to the belt conveyor or scraper conveyor below to be sent to the next process for subsequent processing, thereby realizing the function of automatic batching; the discharge port 101 at the bottom of the dust collector 1 is placed above the feed port of the aggregate chute 5, and the discharge port 101 is sealed and connected to the aggregate chute 5. The dust collector 1 sends the raw materials recovered from various places into the aggregate chute 5 through the discharge port 101 at its bottom, and sends them to the next process together with the configured materials, thereby reducing the loss of raw materials.

[0021] like Figure 4As shown: the dust collecting mechanism 3 includes a baffle plate 301 and a dust collector. Three baffle plates 301 are provided on the end edge of the feeding port at the top of the hopper 2. The baffle plates 301 can prevent material from overflowing and avoid dust from spreading at the feeding port. A dust collector is provided on the top end edge of the middle baffle plate 301. The dust collector includes a shell 302. The shell 302 is provided with an arc-shaped air inlet 303 on the side facing the hopper 2. The arc shape of the arc-shaped air inlet 303 is conducive to increasing the dust suction area and leaving as much feeding operation space as possible, which is convenient for personnel to feed. A plurality of partitions 304 are provided at the arc-shaped air inlet 303 and in the inner cavity of the shell 302 of the dust collector. The partitions 304 are inclined downward toward the direction of the feed port of the hopper 2. The partitions 304 are arranged in parallel. The partitions 304 divide the arc-shaped air inlet 303 into multiple air inlet areas, which can ensure that the pressure distribution of the entire arc-shaped air inlet 303 is relatively uniform, so that the dust collection effect is better. The inner cavity of the dust collector is connected with the air inlet 102 of the dust collector 1 through a pipeline. When the dust collector 1 is working, negative pressure will be generated to provide it to the dust collector for dust collection.

[0022] like Figure 3 As shown: a first dust hood 6 is provided at the discharge port of the feeder 401, the upper end of the first dust hood 6 is sealed and connected to the outer wall of the feeder 401, the inner cavity of the first dust hood 6 is connected to the air inlet 102 of the dust collector 1 through a pipeline, when the feeder 401 is working, the powdery material falls onto the belt surface of the weighing belt 402 and generates dust, the first dust hood 6 can use the negative pressure generated by the dust collector 1 to absorb the dust, and prevent the dust from overflowing and spreading nearby.

[0023] A second dust hood 7 is provided on the top of the aggregate chute 5, and the bottom of the second dust hood 7 is sealed and connected to the top of the aggregate chute 5. A feed port corresponding to the position of the weighing belt 402 is opened on the side wall of the second dust hood 7. The inner cavity of the second dust hood 7 is connected to the air inlet 102 of the dust collector 1 through a pipeline. When the material at the tail of the weighing belt 402 falls into the aggregate chute 5, dust will also be generated. The second dust hood 7 can collect the dust here to prevent the dust from spreading.

[0024] Butterfly valves 8 are respectively provided on the pipes connecting the dust collecting mechanism 3, the first dust collecting hood 6, the second dust collecting hood 7 and the dust collector 1. The opening of the butterfly valves 8 can be used to control the pressure of the dust suction negative pressure of each dust collecting mechanism 3, the first dust collecting hood 6, the second dust collecting hood 7 to avoid excessive suction force causing the airflow to bring too much dust into the dust collector 1, causing the dust collector to inhale too much material and affecting the overall material ratio.

[0025] Working principle: when the equipment is running, personnel put materials into each hopper 2, and the materials are temporarily stored in the hopper 2. The dust collector 1 generates negative pressure during operation. Through the baffle plate 301 of the dust collecting mechanism 3 and the dust collector, a negative pressure area is generated at the feeding port of each hopper 2, which can prevent the dust from spreading outward. After the material enters the hopper 2, it passes through the feeder 401 and falls onto the weighing belt 402 for metering and weighing. The discharge speed of the feeder 401 can be adjusted in real time according to the weight weighed by the weighing belt 402 to control the feeding amount of the material. The control method and control device are all existing technologies known to those skilled in the art, so they will not be repeated here; various materials will finally fall into the aggregate chute 5 together, and pass through the aggregate chute 5 The belt conveyor or scraper at the bottom is sent to the next process for processing; at the feeder 401 and the aggregate chute 5, the material will fall from high to low, so dust will also be generated, which can be collected by the first dust hood 6 and the second dust hood 7. All collected dust is sent to the air inlet of the dust collector 1 through the pipeline along with the air flow. After filtering and separation, the dust will be sent from the discharge port 101 at the bottom of the dust collector 1 to the aggregate chute 5 to mix with the configured material to reduce the waste of raw materials; the above-mentioned dust-free feeding device can prevent the diffusion of dust, reduce the diffusion of dust in the feeding and batching link, reduce the harm of dust to the health of on-site operators, and reduce the risk of dust explosion.

Claims

1. A batching dust removal device, characterized in that: include: A dust collector (1), a hopper (2), a dust collecting mechanism (3) and a quantitative feeding mechanism (4); two or more hoppers (2) are arranged around the dust collector (1); the quantitative feeding mechanism (4) comprises a feeder (401) and a weighing belt (402); the feed port of the feeder (401) is sealed and connected to the discharge port of the hopper (2); a weighing belt (402) is arranged below each hopper (2); the discharge port of the feeder (401) is arranged above the head position of the weighing belt (402); an aggregate chute (5) is arranged below the dust collector (1); the tail of each weighing belt (402) is arranged above the feed port of the aggregate chute (5); The discharge port (101) at the bottom of the dust collector (1) is sealed and connected to the collecting chute (5); the dust collecting mechanism (3) comprises a material baffle plate (301) and a dust collector, three material baffle plates (301) are arranged on the end edge of the feeding port at the top of the hopper (2), and a dust collector is arranged on the top end edge of the middle material baffle plate (301); the dust collector comprises a shell (302), and an arc-shaped air inlet (303) is provided on the shell (302) facing the hopper (2); a plurality of partition plates (304) are arranged at the arc-shaped air inlet (303) and in the inner cavity of the shell (302) of the dust collector, and the inner cavity of the dust collector is connected to the air inlet (102) of the dust collector (1) through a pipeline.

2. A batching dust removal device according to claim 1, characterized in that: A first dust collecting hood (6) is provided at the discharge port of the feeder (401), the upper end of the first dust collecting hood (6) is sealedly connected to the outer wall of the feeder (401), and the inner cavity of the first dust collecting hood (6) is connected to the air inlet (102) of the dust collector (1) through a pipeline.

3. A batching dust removal device according to claim 1, characterized in that: A second dust hood (7) is provided on the top of the aggregate chute (5); the bottom of the second dust hood (7) is sealedly connected to the top of the aggregate chute (5); a feed port corresponding to the position of the weighing belt (402) is provided on the side wall of the second dust hood (7); the inner cavity of the second dust hood (7) is connected to the air inlet (102) of the dust collector (1) through a pipeline.

4. A batching dust removal device according to any one of claims 1 to 3, characterized in that: Butterfly valves (8) are respectively provided on the pipelines connecting the dust collecting mechanism (3), the first dust collecting hood (6), the second dust collecting hood (7) and the dust collector (1).

5. A batching dust removal device according to claim 4, characterized in that: The feeder (401) comprises: a casing (403), an impeller (404) and a speed regulating motor (405); the impeller (404) is rotatably arranged in the casing (403); the blade edge of the impeller (404) abuts against the inner wall of the casing (403); and the output shaft of the speed regulating motor (405) is fixedly connected to the central axis of the impeller (404).

6. A batching dust removal device according to claim 5, characterized in that: It also comprises a debris blocking net (9), which is arranged in the feeding port of the hopper (2), and the debris blocking net (9) is detachably connected to the inner wall of the hopper (2).

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