Stable discharging device for pulverized coal production

Abstract

The utility model relates to the technical field of pulverized coal production, and provides a stable blanking device for pulverized coal production, which comprises a device body, a feeding pipeline is mounted at the top of the device body, a sieve plate is movably embedded in the device body, telescopic rods are mounted on the periphery of the bottom of the sieve plate, and the telescopic rods are connected with the feeding pipeline. The conveying piece structure comprises a device body, the bottom of the device body is provided with a sieve plate, the periphery of the bottom of the sieve plate is provided with reset springs, the inner surfaces of the four reset springs are all movably arranged on the outer surfaces of the telescopic rods in a sleeving mode, and the other ends of the four reset springs and the other ends of the four telescopic rods are all installed in the device body. According to the pulverized coal screening device, stable discharging of pulverized coal is achieved, meanwhile, the pulverized coal can be screened, the pulverized coal can pass through the screening plate, cakes are reserved at the top of the screening plate, and equipment blockage caused by the cakes of the pulverized coal is prevented.

Description

Technical Field

[0001] This utility model relates to the field of pulverized coal production technology, and in particular to a stable feeding device for pulverized coal production. Background Art

[0002] A stable feeding device for pulverized coal production is a key piece of equipment that ensures pulverized coal is uniformly and stably transported from the storage silo to subsequent processing equipment during the preparation process. This device is widely used in industrial sectors such as thermal power plants, cement plants, and chemical plants that require pulverized coal as fuel or raw material.

[0003] While existing stable feeding devices for pulverized coal production can achieve basic conveying and supply of pulverized coal, they lack a certain screening structure. As a particulate material, pulverized coal may vary greatly in terms of particle size distribution, humidity, and flowability. Especially under conditions of high humidity or dampness, pulverized coal is prone to agglomeration. Due to the lack of an effective screening structure, existing devices cannot effectively remove agglomerates. Agglomerated pulverized coal not only leads to uneven feeding but may also cause equipment blockage, affecting the normal operation of the feeding device and the conveying efficiency of pulverized coal. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the existing technology lacks an effective screening structure, and the existing devices cannot effectively remove lumps. Lumped coal powder not only leads to uneven feeding, but may also cause equipment blockage, affecting the normal operation of the feeding device and the conveying efficiency of coal powder.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a stable feeding device for pulverized coal production, comprising a device body, a feeding pipe installed on the top of the device body, a movably embedded screen plate inside the device body, telescopic rods installed around the bottom perimeter of the screen plate, and return springs installed around the bottom perimeter of the screen plate. The inner surfaces of the four return springs are movably fitted onto the outer surfaces of the telescopic rods, and the other ends of the four return springs and the four telescopic rods are installed inside the device body. The device also includes:

[0006] The first rotating rod is movably embedded inside the device body. An eccentric wheel is fixedly sleeved on the outer surface of the first rotating rod. The eccentric wheel is located at the bottom of the sieve plate. A first motor is installed on the rear side of the first rotating rod. A support plate is installed at the bottom of the first motor. The front side of the support plate is installed on the rear side of the device body.

[0007] A feeding hopper is fixedly embedded inside the bottom side of the device body, and a conveying component is installed at the bottom of the feeding hopper.

[0008] In a preferred embodiment, a base is mounted on the bottom of the device body, the bottom of the conveying component is mounted on the top of the base, and a spiral pusher is movably embedded inside the conveying component.

[0009] The technical effect of adopting the above-mentioned further solution is that coal powder can be transported through the feeding hopper and allowed to enter the interior of the conveying component.

[0010] In a preferred embodiment, a second motor is installed on the left side of the spiral pusher, and a discharge pipe is installed on the bottom right side of the conveyor.

[0011] The technical effect of adopting the above-mentioned further solution is that the second motor can drive the spiral pusher to rotate.

[0012] In a preferred embodiment, the bottom of the second motor is mounted on the top left side of the base, a first pulley is fixedly sleeved on the front side of the first rotating rod, and two second rotating rods are movably embedded in the left side of the device body.

[0013] The technical effect of adopting the above-mentioned further solution is that the first rotating rod can transmit power to the first pulley.

[0014] In a preferred embodiment, a crushing roller is fixedly sleeved on the outer surface of both second rotating rods, and a second pulley is installed on the front side of one of the second rotating rods.

[0015] The technical effect of adopting the above-mentioned further solution is that the crushing roller can be driven by the second rotating rod.

[0016] In a preferred embodiment, a belt body is movably fitted onto the outer surface of the second pulley, gears are fixedly fitted onto the rear sides of both second rotating rods, and the other end of the belt body is movably fitted onto the outer surface of the first pulley.

[0017] The technical effect of adopting the above-mentioned further solution is that the belt body can then drive the second pulley.

[0018] In a preferred embodiment, the two gears mesh, and a conveyor belt is provided on the left side inside the device body, with the conveyor belt located at the bottom of the two crushing rollers.

[0019] The technical effect of adopting the above-mentioned further solution is that the right gear can transmit power to the left gear.

[0020] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0021] 1. In use, this utility model, through the arrangement of the screen plate and conveying component structure, not only achieves stable coal powder feeding, but also screens the coal powder, allowing it to pass through the screen plate while lumps remain on the top of the screen plate. This prevents equipment blockage caused by lumpy coal powder, and solves the problem of the lack of an effective screening structure in the prior art. Existing devices cannot effectively remove lumps, and lumpy coal powder not only leads to uneven feeding, but may also cause equipment blockage, affecting the normal operation of the feeding device and the conveying efficiency of coal powder.

[0022] 2. In use, this utility model, through the arrangement of the belt body and the crushing roller structure, can effectively crush clumped coal powder into smaller particles. This not only ensures the timely handling of coal powder clumps, preventing them from accumulating on the screen plate and reducing the risk of blockage, but also reduces intermediate steps in material processing and improves production efficiency. Attached Figure Description

[0023] Figure 1 A rear-view three-dimensional structural diagram of a stable feeding device for pulverized coal production provided by this utility model;

[0024] Figure 2 A three-dimensional cross-sectional view of the conveyor component of a stable feeding device for pulverized coal production provided by this utility model;

[0025] Figure 3 A three-dimensional cross-sectional view of the device body of a stable feeding device for pulverized coal production provided by this utility model. Figure 1

[0026] Figure 4 A three-dimensional cross-sectional view of the device body of a stable feeding device for pulverized coal production provided by this utility model. Figure 2 ;

[0027] Figure 5 This is a partial three-dimensional structural diagram of a stable feeding device for pulverized coal production provided by this utility model.

[0028] Legend:

[0029] 1. Device body; 101. Feed pipe; 102. Screen plate; 103. Telescopic rod; 104. Return spring; 105. First rotating rod; 106. Eccentric wheel; 107. First motor; 108. Support plate; 109. Discharge hopper; 110. Conveying component; 111. Base; 112. Spiral pusher; 113. Second motor; 114. Discharge pipe; 2. First pulley; 201. Second rotating rod; 202. Crushing roller; 203. Second pulley; 204. Belt body; 205. Gear; 206. Conveyor belt. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1, please refer to Figures 1 to 5 This utility model provides a technical solution: a stable feeding device for pulverized coal production, including a device body 1, a feeding pipe 101 installed on the top of the device body 1, a screen plate 102 movably embedded inside the device body 1, telescopic rods 103 installed around the bottom of the screen plate 102, and return springs 104 installed around the bottom of the screen plate 102. The inner surfaces of the four return springs 104 are movably sleeved on the outer surfaces of the telescopic rods 103, and the other ends of the four return springs 104 and the four telescopic rods 103 are all installed inside the device body 1.

[0032] It also includes: a first rotating rod 105, which is movably embedded inside the device body 1. An eccentric wheel 106 is fixedly sleeved on the outer surface of the first rotating rod 105. The eccentric wheel 106 is located at the bottom of the screen plate 102. A first motor 107 is installed on the rear side of the first rotating rod 105. A support plate 108 is installed at the bottom of the first motor 107. The front side of the support plate 108 is installed on the rear side of the device body 1. A feeding hopper 109 is fixedly embedded inside the bottom side of the device body 1. A conveying component 110 is installed at the bottom of the feeding hopper 109. A base 111 is installed at the bottom of the device body 1. The bottom of the conveying component 110 is installed on the top of the base 111. A spiral pusher 112 is movably embedded inside the conveying component 110. A second motor 113 is installed on the left side of the spiral pusher 112. A discharge pipe 114 is installed on the right side of the bottom of the conveying component 110.

[0033] In this embodiment, personnel first feed coal powder into the device body 1 through the feed pipe 101, causing the coal powder to fall onto the top of the screen plate 102. Then, personnel start the first motor 107 via the power supply system on the support plate 108. During operation, the first motor 107 transmits power to the first rotating rod 105 via its output shaft. The first rotating rod 105 then drives the eccentric wheel 106 to rotate in a circle. When the eccentric wheel 106 reaches the top, it pushes the screen plate 102 upwards and pulls the return spring 104 and the telescopic rod 103 upwards. When the eccentric wheel 106 reaches the bottom, it resets the return spring 104 and the telescopic rod 103, pulling the screen plate 102 downwards. Thus, the reciprocating rotation of the eccentric wheel 106 causes the screen plate 102 to rise and fall repeatedly, screening the coal powder on top. Coal powder falls through the screen plate 102 into the feeding hopper 109, while clumps remain on the top of the screen plate 102. After the coal powder falls into the feeding hopper 109, it is transported through the feeding hopper 109 and enters the conveyor 110. Then, the second motor 113 on the base 111 is started by the power supply system of the second motor 113. When running, the second motor 113 drives the spiral pusher 112 to rotate through the output shaft. The spiral pusher 112 pushes the coal powder to the right and causes it to flow out of the conveyor 110 through the discharge pipe 114. Through the structure of the screen plate 102 and the conveyor 110, not only is the coal powder fed stably, but it can also be screened, allowing the coal powder to pass through the screen plate 102 while clumps remain on the top of the screen plate 102, preventing equipment blockage caused by clumps of coal powder.

[0034] Example 2, as Figures 1 to 5 As shown, the bottom of the second motor 113 is installed on the top left side of the base 111. The first pulley 2 is fixedly sleeved on the front side of the first rotating rod 105. Two second rotating rods 201 are movably embedded in the left side of the device body 1. Crushing rollers 202 are fixedly sleeved on the outer surface of both second rotating rods 201. A second pulley 203 is installed on the front side of one of the second rotating rods 201. A belt body 204 is movably sleeved on the outer surface of the second pulley 203. Gears 205 are fixedly sleeved on the rear side of both second rotating rods 201. The other end of the belt body 204 is movably sleeved on the outer surface of the first pulley 2. The two gears 205 mesh with each other. A conveyor belt 206 is provided on the left side of the inside of the device body 1. The conveyor belt 206 is located at the bottom of the two crushing rollers 202.

[0035] In this embodiment, when the sieve plate 102 is raised and lowered, the clumps remaining on its top will roll to the left to the top of the crushing roller 202 due to the inclined angle of the sieve plate 102. When the first rotating rod 105 rotates, it will be driven by the first pulley 2 to the belt body 204, and then by the belt body 204 to the second rotating rod 201 on the right side through the second pulley 203. The second rotating rod 201 on the right side will then be driven by the gear 205 on the right side. When the gear 205 on the right side rotates, it will be driven by the gear 205 on the left side, and then by the gear 205 on the left side to the second rotating rod 201 on the left side, thereby causing the two crushing rollers 202 to rotate in opposite directions. The rotating conveyor belt 204 crushes coal powder clumps, and the crushed coal powder clumps fall onto the top of the conveyor belt 206. Then, the conveyor belt 206 can be started by the starting system, so that it can transport the crushed coal powder clumps to the right and let them fall into the inside of the discharge hopper 109. Through the structure of the belt body 204 and the crushing roller 202, the clumped coal powder can be effectively crushed into smaller particles. This not only ensures the timely handling of coal powder clumps and prevents them from accumulating on the screen plate 102, reducing the risk of blockage, but also reduces intermediate steps in material handling and improves production efficiency.

[0036] In operation, personnel first feed pulverized coal into the device body 1 through the feed pipe 101, causing the coal powder to fall onto the top of the screen plate 102. Then, personnel start the first motor 107 via the power supply system on the support plate 108. During operation, the first motor 107 is driven through the output shaft to the first rotating rod 105, which in turn drives the eccentric wheel 106 to rotate in a circle. When the eccentric wheel 106 reaches the top of the circle, it pushes the screen plate 102 upwards. The eccentric wheel 106 rotates to the bottom, causing the return spring 104 and the telescopic rod 103 to return to their original positions and pull the screen plate 102 downwards. The reciprocating rotation of the eccentric wheel 106 causes the screen plate 102 to move up and down repeatedly, thus screening the coal powder on its top. The coal powder falls through the screen plate 102 into the inside of the feed hopper 109, while the clumps remain on the top of the screen plate 102.

[0037] After the coal powder falls into the feeding hopper 109, it is transported through the feeding hopper 109 and enters the conveyor 110. Then, the second motor 113 on the base 111 is started by the power supply system of the second motor 113. When running, the second motor 113 drives the spiral pusher 112 to rotate through the output shaft. The spiral pusher 112 pushes the coal powder to the right and makes it flow out of the conveyor 110 through the discharge pipe 114. The structure of the screen plate 102 and the conveyor 110 not only achieves stable coal powder feeding, but also screens the coal powder. This allows the coal powder to pass through the screen plate 102, while lumps are retained on the top of the screen plate 102, preventing equipment blockage caused by coal powder lumps.

[0038] In use, when the sieve plate 102 is raised and lowered, the clumps remaining on its top will roll to the left to the top of the crushing roller 202 due to the inclined angle of the sieve plate 102. When the first rotating rod 105 rotates, it will drive the belt body 204 through the first pulley 2, and then the belt body 204 will drive the second rotating rod 201 on the right through the second pulley 203. The second rotating rod 201 on the right will then drive the gear 205 on the right. When the gear 205 on the right rotates, it will drive the gear 205 on the left, and then the gear 205 on the left will drive the second rotating rod 201 on the left, thus causing the two crushing rollers 202 to rotate in opposite directions. The rotating conveyor belt 204 crushes coal powder clumps, and the crushed coal powder clumps fall onto the top of the conveyor belt 206. Then, the conveyor belt 206 can be started by the starting system, so that it can transport the crushed coal powder clumps to the right and let them fall into the inside of the discharge hopper 109. Through the structure of the belt body 204 and the crushing roller 202, the clumped coal powder can be effectively crushed into smaller particles. This not only ensures the timely handling of coal powder clumps and prevents them from accumulating on the screen plate 102, reducing the risk of blockage, but also reduces intermediate steps in material handling and improves production efficiency.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A stable feeding device for pulverized coal production, comprising a device body (1), a feeding pipe (101) installed on the top of the device body (1), a screen plate (102) movably embedded inside the device body (1), telescopic rods (103) installed around the bottom of the screen plate (102), and return springs (104) installed around the bottom of the screen plate (102). The inner surfaces of the four return springs (104) are movably sleeved on the outer surfaces of the telescopic rods (103), and the other ends of the four return springs (104) and the four telescopic rods (103) are installed inside the device body (1), characterized in that, Also includes: The first rotating rod (105) is movably embedded inside the device body (1). An eccentric wheel (106) is fixedly sleeved on the outer surface of the first rotating rod (105). The eccentric wheel (106) is located at the bottom of the sieve plate (102). A first motor (107) is installed on the rear side of the first rotating rod (105). A support plate (108) is installed at the bottom of the first motor (107). The front side of the support plate (108) is installed on the rear side of the device body (1). A feeding hopper (109) is fixedly embedded in the bottom side of the device body (1), and a conveying component (110) is installed at the bottom of the feeding hopper (109).

2. The stable feeding device for pulverized coal production according to claim 1, characterized in that: The bottom of the device body (1) is equipped with a base (111), the bottom of the conveying component (110) is installed on the top of the base (111), and a spiral pusher (112) is movably embedded inside the conveying component (110).

3. The stable feeding device for pulverized coal production according to claim 2, characterized in that: A second motor (113) is installed on the left side of the spiral pusher (112), and a discharge pipe (114) is installed on the bottom right side of the conveyor (110).

4. The stable feeding device for pulverized coal production according to claim 3, characterized in that: The bottom of the second motor (113) is mounted on the top left side of the base (111), and the first pulley (2) is fixedly sleeved on the front side of the first rotating rod (105). Two second rotating rods (201) are movably embedded in the left side of the device body (1).

5. A stable feeding device for pulverized coal production according to claim 4, characterized in that: The outer surfaces of the two second rotating rods (201) are fixedly fitted with crushing rollers (202), and a second pulley (203) is installed on the front side of one of the second rotating rods (201).

6. The stable feeding device for pulverized coal production according to claim 5, characterized in that: The outer surface of the second pulley (203) is movably fitted with a belt body (204), and gears (205) are fixedly fitted on the rear sides of the two second rotating rods (201). The other end of the belt body (204) is movably fitted on the outer surface of the first pulley (2).

7. A stable feeding device for pulverized coal production according to claim 6, characterized in that: The two gears (205) mesh with each other, and a conveyor belt (206) is provided on the left side of the inside of the device body (1), and the conveyor belt (206) is located at the bottom of the two crushing rollers (202).

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