Multi-row matching type pulverized coal storage tank

Abstract

The utility model discloses a multi-row matching type pulverized coal storage tank which comprises three tank bodies, the middle positions of the bottoms in the three tank bodies are all provided with discharging pipes extending to the outer portions of the three tank bodies, the inner bottoms of the three discharging pipes are provided with discharging valves, the tops of the three tank bodies are all provided with top bins communicated with the interiors of the three tank bodies, and the top bins are communicated with the interiors of the three tank bodies. Automatic pressure discharging assemblies are arranged on one sides of the three sets of top bins, fixing pipes extending to the outer portions of the top bins are arranged in the middles of the tops in the three sets of top bins, and through the material design of a first connecting hose and a second connecting hose, a motor, a spiral conveying blade, a connecting rod and an electric push rod are matched; according to the storage tank, the progressive discharging function from the low position to the high position in the tank body can be achieved, the phenomenon of dust floating generated during pulverized coal infusion can be effectively avoided in cooperation with conveying of the spiral conveying blades, then the dangerous phenomenon generated due to the fact that a large amount of dust floats can be prevented, and the safety performance of later pulverized coal infusion of the storage tank is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of electrode paste production, in particular to a multi-row coordinated coal powder storage tank. Background Art

[0002] Coal powder refers to coal with a particle size of less than 0.5 mm and is the most commonly used additive in cast iron molding sand. In recent years, foreign countries have mixed coal powder with clay to form a commodity (carbon clay) for the market. In the raw materials for electrode paste configuration, the proportion of coal powder is greater than 60%. A large amount of coal powder is pre-calcined and stored in the silo (device), so it is necessary to design a multi-row coordinated coal powder storage tank.

[0003] The internal structure of the existing coal powder storage device is relatively simple, and most of them can only realize the storage of coal powder. During the filling process, the coal powder mostly falls directly from a high place inside the tank to the bottom. This coal powder filling method will cause a lot of dust to be generated inside the storage tank. When the dust is suspended to a specified concentration, it is easy to cause dangers such as tank explosion. Secondly, the pressure relief structure inside the tank is mostly manual, and the operator is required to perform pressure relief operations on the internal pressure of the storage tank many times and frequently in the later stage. This pressure relief method is relatively cumbersome and reduces the convenience and cumbersomeness of the operator's work in the later stage. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-row coordinated coal powder storage tank, which solves the danger of internal dust suspension caused by directly injecting coal powder into the existing storage tank, and also solves the problem that the existing storage tank requires operators to frequently open and close the pressure relief valve.

[0005] To achieve the above-mentioned purpose, a multi-row coordinated pulverized coal storage tank is provided, including a tank body, wherein the tank body is provided with three groups, and the middle position of the inner bottom of the three groups of tank bodies is provided with a discharge pipe extending to the outside thereof, the inner bottom of the three groups of discharge pipes is provided with a discharge valve, the top of the three groups of tank bodies is provided with a top bin connected to the interior thereof, one side of the three groups of top bins is provided with an automatic pressure relief assembly, the middle position of the inner top of the three groups of top bins is provided with a fixed pipe extending to the outside thereof, one side of the three groups of fixed pipes is provided with a feed pipe, the top and bottom of the three groups of fixed pipes are respectively connected with a connecting hose 1 and a connecting hose 2, a fixing plate is installed on the top of the connecting hose 1, and a transmission assembly is provided on the bottom of the fixing plate close to the connecting hose 1.

[0006] According to the multi-row coordinated pulverized coal storage tank, the automatic pressure relief assembly includes a spring, a conical sealing plug, a pressure relief port, a limit rod and a limit plate. The pressure relief port is opened at the middle position of the top bin away from the feed pipe. There are two groups of limit rods. The two groups of limit rods are installed at the top and bottom of the top bin close to the pressure relief port. The outsides of the two groups of limit rods are jointly sleeved with a conical sealing plug, and the conical sealing plug extends to the inside of the pressure relief port and seals with it. The two groups of limit rods are jointly provided with a limit plate on the side away from the top bin, and the side where the limit plate and the conical sealing plug are close to each other is jointly connected with a spring.

[0007] According to the multi-row coordinated pulverized coal storage tank, the transmission assembly includes a spiral transmission blade, a motor, a connecting rod and an electric push rod. The motor is installed on the side of the bottom of the fixed plate close to the connecting hose one, and the motor is placed inside the connecting hose one. The output end of the motor is provided with a spiral transmission blade, and the spiral transmission blade extends to the inner bottom of the tank body through the fixed tube and the connecting hose two. The connecting rod is installed in the middle position of the bottom of the fixed plate, and the connecting rod extends to the inside of the tank body through the top bin, and the bottom of the connecting rod is connected to the bottom of one side of the connecting hose two. The electric push rod is installed on the side of the bottom of the fixed plate away from the motor, and the bottom of the electric push rod is connected to the top of the top bin.

[0008] According to the multi-row matched pulverized coal storage tanks, fixing rods are provided at the middle positions on both sides of one group of tank bodies to fix the other two groups of tank bodies, and support rods are provided on the side away from the bottom of the two groups of fixing rods of the other two groups of tank bodies.

[0009] According to the multi-row coordinated pulverized coal storage tank, the top and bottom of the fixed pipe and the bottom of connecting hose one and the top of connecting hose two are all provided with connecting flanges, and the connecting flanges of connecting hose one and connecting hose two are connected to the connecting flanges at the top and bottom of the fixed pipe.

[0010] According to the multi-row coordinated pulverized coal storage tank, a through opening is provided on the side of the top of the top bin away from the feed pipe, and the through opening is coordinated with the connecting rod.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: through the material design of the connecting hose 1 and the connecting hose 2 and in combination with the motor, the spiral transmission blade, the connecting rod and the electric push rod, a progressive unloading function from the lower to the higher position inside the tank body can be realized, and the transmission with the spiral transmission blade can effectively avoid the dust floating phenomenon generated during the coal powder injection, thereby preventing the dangerous phenomenon caused by excessive dust floating, and ensuring the safety performance of the coal powder injection in the later stage of the storage tank;

[0012] At the same time, through the design coordination of the spring, truncated cone-shaped sealing plug, pressure relief port, limit rod and limit plate, when the internal pressure of the tank body is too high in the later stage, the pressure can directly realize the ejection of the truncated cone-shaped sealing plug, and then realize the compression of the spring. The ejection of the truncated cone-shaped sealing plug can release the seal of the pressure relief port, and then the pressure relief operation of the internal pressure of the tank body can be realized through the pressure relief port. The structural design of this component eliminates the need for manual and frequent pressure relief work by the operator in the later stage, which increases the intelligence of the later pressure relief of the storage tank.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the multi-row coordinated coal powder storage tank body of the utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the connecting hose of the multi-row coordinated pulverized coal storage tank of the utility model;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the truncated cone-shaped sealing plug of the multi-row matching coal powder storage tank of the utility model;

[0018] Figure 4 This is a front sectional view of a multi-row coordinated pulverized coal storage tank of the present invention;

[0019] Figure 5 This utility model is a multi-row coordinated coal powder storage tank Figure 4 Enlarged view of point A.

[0020] In the figure: 1. Tank body; 2. Discharge pipe; 3. Unloading valve; 4. Fixed pipe; 5. Electric push rod; 6. Connecting rod; 7. Fixed plate; 8. Motor; 9. Connecting hose 1; 10. Feed pipe; 11. Top bin; 12. Spiral transmission blade; 13. Connecting hose 2; 14. Spring; 15. Cone-shaped sealing plug; 16. Pressure relief port; 17. Limit rod; 18. Limit plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the utility model.

[0022] See also Figures 1-5 The embodiment of the present invention provides a technical solution: a multi-row matched coal powder storage tank, including a tank body 1, the tank body 1 is provided with three groups, the middle position of the bottom of the three groups of tank bodies 1 are provided with a discharge pipe 2 extending to the outside thereof, the inner bottom of the three groups of discharge pipes 2 are provided with a discharge valve 3, the top of the three groups of tank bodies 1 are provided with a top bin 11 connected to the inside thereof, one side of the three groups of top bins 11 are provided with an automatic pressure relief assembly, the middle position of the top of the three groups of top bins 11 are provided with a fixed pipe 4 extending to the outside thereof, one side of the three groups of fixed pipes 4 are provided with a feed pipe 10, the three groups The top and bottom of the fixed pipe 4 are respectively connected with a connecting hose 1 9 and a connecting hose 2 13. A fixing plate 7 is installed on the top of the connecting hose 1 9. A transmission component is provided on the bottom of the fixing plate 7 close to the connecting hose 1 9. The storage of coal powder can be realized through the tank body 1, and a multi-row coordinated coal powder storage tank can be realized by designing multiple groups of tank bodies 1 and the above components. This can solve the risk of internal dust suspension caused by directly injecting coal powder into the existing storage tank, and also solve the problem that the existing storage tank still requires operators to frequently open and close the pressure relief valve.

[0023] The automatic pressure relief assembly includes a spring 14, a truncated cone-shaped sealing plug 15, a pressure relief port 16, a limiting rod 17 and a limiting plate 18. The pressure relief port 16 is located in the middle of the top bin 11 away from the feed pipe 10. There are two groups of limiting rods 17. The two groups of limiting rods 17 are installed at the top and bottom of the top bin 11 near the pressure relief port 16. The outside of the two groups of limiting rods 17 is jointly sleeved with a truncated cone-shaped sealing plug 15, and the truncated cone-shaped sealing plug 15 extends to the inside of the pressure relief port 16 and is sealed therewith. The two groups of limiting rods 17 are away from the top bin 11. A limit plate 18 is provided on one side, and a spring 14 is connected to the side where the limit plate 18 and the truncated cone-shaped sealing plug 15 are close to each other. The truncated cone-shaped sealing plug 15 is pushed out to the inside of the pressure relief port 16 by pressure to release the seal of the pressure relief port 16 to realize the pressure relief operation. The movement of the truncated cone-shaped sealing plug 15 can also realize the compression of the spring 14. Finally, the elastic restoring force of the spring 14 can realize the restoration of the truncated cone-shaped sealing plug 15, and then the sealing of the pressure relief port 16 can be realized, so that the automatic pressure relief operation is realized in a reciprocating cycle.

[0024] The transmission assembly includes a spiral transmission blade 12, a motor 8, a connecting rod 6 and an electric push rod 5. The motor 8 is installed at the bottom of the fixed plate 7 near the side of the connecting hose 9, and the motor 8 is placed inside the connecting hose 9. The output end of the motor 8 is provided with a spiral transmission blade 12, and the spiral transmission blade 12 extends to the inner bottom of the tank body 1 through the fixed pipe 4 and the connecting hose 2 13. The connecting rod 6 is installed at the middle position of the bottom of the fixed plate 7, and the connecting rod 6 extends to the inside of the tank body 1 through the top bin 11, and the bottom of the connecting rod 6 is connected to the connecting hose 2 1 3, the electric push rod 5 is installed on the side of the bottom of the fixed plate 7 away from the motor 8, and the bottom of the electric push rod 5 is connected to the top of the top bin 11. The motor 8 can drive the spiral transmission blade 12, and the driving of the spiral transmission blade 12 can realize the uniform speed injection and landing operation of the coal powder. The driving of the spiral transmission blade 12 can reduce the dust floating phenomenon generated during the later coal powder injection. At the same time, the driving of the electric push rod 5 can realize the progressive dropping operation of the coal powder from low to high, thereby ensuring the safety of the later injection.

[0025] The middle position of both sides of one group of tank bodies 1 is provided with a fixing rod fixed to the other two groups of tank bodies 1, and the side away from the other two groups of tank bodies 1 and the bottom of the two groups of fixing rods are provided with a support rod. The design of the fixing rod can realize the fixed connection operation of multiple groups of tank bodies 1, and the design of the support rod can realize the support and placement of multiple groups of tank bodies 1 and the above components. The top and bottom of the fixed pipe 4 and the bottom of the connecting hose 1 9 and the top of the connecting hose 2 13 are provided with connecting flanges, and the connecting flanges of the connecting hose 1 9 and the connecting hose 2 13 are connected to the connecting flanges at the top and bottom of the fixed pipe 4. The design of the connecting flange can realize the fixed installation of the top of the fixed pipe 4 and the connecting hose 1 9 and the bottom of the fixed pipe 4 and the connecting hose 2 13, so as to facilitate the later coal powder infusion effect. A through opening is opened on the side of the top of the top bin 11 away from the feed pipe 10, and the through opening cooperates with the connecting rod 6. The opening of the through opening can facilitate the penetration and movement of the connecting rod 6.

[0026] Working principle: When in use, the storage tank can be installed at the designated position and connected to the power supply. Then, the coal powder can be injected through the feeding pipe 10. At the same time, the spiral transmission blade 12 can be rotated by the motor 8. Then, when the coal powder enters the interior of the fixed pipe 4 through the feeding pipe 10, the rotation of the spiral transmission blade 12 can realize the transmission of the coal powder. The transmission of the spiral transmission blade 12 and the restriction of the fixed pipe 4, the connecting hose 1 9 and the connecting hose 2 13 can effectively prevent the coal powder from floating, ensuring the safety of the later coal powder injection. At the same time, the spiral transmission blade 12 can be used to transport the coal powder to the inner bottom of the tank body 1;

[0027] Then, as the coal powder is continuously injected, the electric push rod 5 can be opened, and the fixed plate 7 and the components above it can be lifted by the electric push rod 5. Then, through the connection between the connecting rod 6 and the connecting hose 2 13, the fixed plate 7 can be lifted and the motor 8 and the spiral transmission blade 12 can be moved upward at the same time to stretch the connecting hose 1 9. Then, due to the connection between the connecting rod 6 and the connecting hose 2 13, the connecting hose 2 13 can be compressed when the fixed plate 7 and the components above it move upward, thereby realizing the sequential injection of the tank body 1 from the lower to the higher position. This injection method can effectively prevent the floating of the coal powder inside the tank body 1, thereby further ensuring the safety of the later coal powder injection.

[0028] At the same time, when the internal pressure of the tank body 1 is too high, the pressure can push the truncated cone-shaped sealing plug 15 to move through the pressure relief port 16, so that the truncated cone-shaped sealing plug 15 can move outside the limit rod 17 to realize the compression operation of the spring 14. At this time, the seal of the pressure relief port 16 can be released by the movement of the truncated cone-shaped sealing plug 15, and then the pressure can be discharged through the pressure relief port 16 to realize the automatic pressure relief function of the tank body 1 in the later stage, without the need for the operator to frequently perform manual pressure relief operations, and when the pressure decreases, the elastic restoring force of the spring 14 can realize the restoration of the truncated cone-shaped sealing plug 15, and then realize the sealing of the pressure relief port 16, so as to realize the automatic pressure relief function in this way.

[0029] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A multi-row coordinated pulverized coal storage tank, comprising a tank body (1), characterized in that: The tank body (1) is provided with three groups, and the middle position of the bottom of the three groups of tank bodies (1) is provided with a discharge pipe (2) extending to the outside thereof, and the inner bottom of the three groups of discharge pipes (2) is provided with a discharge valve (3), and the top of the three groups of tank bodies (1) is provided with a top bin (11) connected to the inside thereof, and one side of the three groups of top bins (11) is provided with an automatic pressure relief assembly, and the middle position of the top of the three groups of top bins (11) is provided with a fixed pipe (4) extending to the outside thereof, and one side of the three groups of fixed pipes (4) is provided with a feed pipe (10), and the top and bottom of the three groups of fixed pipes (4) are respectively connected with a connecting hose 1 (9) and a connecting hose 2 (13), and a fixing plate (7) is installed on the top of the connecting hose 1 (9), and a transmission assembly is provided on the bottom of the fixing plate (7) near the connecting hose 1 (9).

2. The multi-row coordinated pulverized coal storage tank according to claim 1, characterized in that: The automatic pressure relief assembly includes a spring (14), a truncated cone-shaped sealing plug (15), a pressure relief port (16), a limiting rod (17) and a limiting plate (18). The pressure relief port (16) is opened at the middle position of the top bin (11) away from the feed pipe (10). The limiting rod (17) is provided with two groups. The two groups of limiting rods (17) are installed at the top and bottom of the top bin (11) near the pressure relief port (16). The outsides of the two groups of limiting rods (17) are jointly sleeved with a truncated cone-shaped sealing plug (15), and the truncated cone-shaped sealing plug (15) extends to the inside of the pressure relief port (16) and is sealed therewith. The two groups of limiting rods (17) are jointly provided with a limiting plate (18) on the side away from the top bin (11). The side of the limiting plate (18) and the truncated cone-shaped sealing plug (15) close to each other are jointly connected with a spring (14).

3. The multi-row coordinated pulverized coal storage tank according to claim 1, characterized in that: The transmission assembly includes a spiral transmission blade (12), a motor (8), a connecting rod (6) and an electric push rod (5), wherein the motor (8) is installed at a side of the bottom of the fixed plate (7) close to the connecting hose 1 (9), and the motor (8) is placed inside the connecting hose 1 (9), the output end of the motor (8) is provided with a spiral transmission blade (12), and the spiral transmission blade (12) extends to the inner bottom of the tank body (1) through the fixed pipe (4) and the connecting hose 2 (13), the connecting rod (6) is installed at the middle position of the bottom of the fixed plate (7), and the connecting rod (6) extends to the inside of the tank body (1) through the top bin (11), and the bottom of the connecting rod (6) is connected to the bottom of one side of the connecting hose 2 (13), the electric push rod (5) is installed at a side of the bottom of the fixed plate (7) away from the motor (8), and the bottom of the electric push rod (5) is connected to the top of the top bin (11).

4. The multi-row coordinated pulverized coal storage tank according to claim 1, characterized in that: A fixing rod fixed to the other two groups of tank bodies (1) is provided at the middle position of both sides of one group of tank bodies (1), and a supporting rod is provided at the side of the other two groups of tank bodies (1) away from the bottom of the two groups of fixing rods.

5. The multi-row coordinated pulverized coal storage tank according to claim 1, characterized in that: The top and bottom of the fixed pipe (4) and the bottom of the connecting hose 1 (9) and the top of the connecting hose 2 (13) are all provided with connecting flanges, and the connecting flanges of the connecting hose 1 (9) and the connecting hose 2 (13) are connected to the connecting flanges of the top and bottom of the fixed pipe (4).

6. The multi-row coordinated pulverized coal storage tank according to claim 1, characterized in that: A through opening is provided on a side of the top of the top bin (11) away from the feed pipe (10), and the through opening is matched with the connecting rod (6).

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