Y-shaped coal feeding device for gasification furnace

Abstract

The utility model discloses a Y shape coal feeder for gasification furnace relates to gasification furnace technical field, including two coal bunkers, and the bottom export of each coal bunker is fixedly connected with the top of two rubber expansion joints respectively, and the bottom of two rubber expansion joints is fixedly connected with the top two import ends of Y type coal storage bunker respectively, and the bottom export of Y type coal storage bunker is installed with self -made shear valve, and the bottom export end of Y type coal storage bunker is connected with the top import of coal lock, and Y type coal storage bunker is located the top of coal lock, the bottom export of coal bunker is installed with the plug valve, and the plug valve is located the top of rubber expansion joint, the utility model discloses the advantage: through the additional Y type coal storage bunker, the capacity of coal falling is expanded, can reduce the jam frequency of coal material, and set up self -made shear valve can quickly shear the discharge port of Y type coal storage bunker and close, realizes the effect of closing the valve.

Description

Technical fields:

[0001] This utility model relates to the field of gasifier technology, specifically a Y-shaped coal supply device for a gasifier. Background technology:

[0002] Before starting the existing pulverized coal pressurized gasifier, the gate valve at the connection between the coal chute and the coal bunker needs to be opened manually. Coal is then fed from the coal bunker through the coal chute to the coal lock using gravity, and then the coal is fed into the gasifier through the coal lock.

[0003] The existing patent publication number is CN206345831U, which discloses a pressurized coal gasification furnace capable of disrupting coal chute bridging, comprising a coal bunker, a coal chute, a cylindrical valve, a coal lock, and a furnace body; the bottom outlet of the coal bunker is connected to the top inlet of the coal chute, the bottom outlet of the coal chute is connected to the inlet of the cylindrical valve, the bottom outlet of the cylindrical valve is connected to the top inlet of the coal lock, and the bottom outlet of the coal lock is connected to the top inlet of the furnace body; a slide gate valve is provided at the connection between the coal chute and the coal bunker.

[0004] The current system has the following problems: During the opening of the cylindrical valve, because the two coal chutes are inclined on both sides of the valve, coal jamming and blockage frequently occur in the chutes during coal feeding, preventing coal from smoothly entering the cylindrical valve. This causes the gasifier to frequently reduce its load, affecting its operation. Therefore, it is often necessary to manually and continuously tap the coal chutes on-site to prevent coal jamming and blockage, ensuring the stable operation of the gasifier, which is labor-intensive. Utility Model Content:

[0005] The purpose of this invention is to provide a Y-shaped coal feeding device for a gasifier to solve the problems mentioned in the background art.

[0006] This utility model is implemented by the following technical solution:

[0007] A Y-shaped coal feeding device for a gasifier includes two coal bunkers. The bottom outlet of each coal bunker is fixedly connected to the top of two rubber expansion joints, and the bottom ends of the two rubber expansion joints are fixedly connected to the top two inlets of the Y-shaped coal storage bunker. A self-made shear valve is installed at the bottom outlet of the Y-shaped coal storage bunker, and the bottom outlet of the Y-shaped coal storage bunker is connected to the top inlet of a coal lock. The Y-shaped coal storage bunker is located above the coal lock. A slide gate valve is installed at the bottom outlet of the coal bunker, and the slide gate valve is located above the rubber expansion joints. The self-made shear valve includes a valve body, a protective plate, a movable valve seat, a valve plate, a valve stem, and a first hydraulic cylinder. The valve body has a slot, and the upper and lower ends of the slot are fixed with protective plates. Two symmetrically arranged movable valve seats are rotatably arranged in the middle of the valve body. The end faces of the movable valve seats and the protective plates are movably fitted together. The valve plate is slidably inserted between the two movable valve seats and between the two protective plates. One end of the valve stem is fixedly connected to the valve plate, and the other end of the valve stem is fixedly connected to the piston rod of the first hydraulic cylinder.

[0008] Preferably, a circular hole with the same diameter as the bottom outlet of the Y-shaped coal storage bin is provided on one side of the surface of the valve plate. When the piston rod of the first hydraulic cylinder is fully extended, the circular hole is not connected to the bottom outlet of the Y-shaped coal storage bin. When the piston rod of the first hydraulic cylinder is fully retracted, the circular hole is connected to the bottom outlet of the Y-shaped coal storage bin.

[0009] Preferably, a second hydraulic cylinder is fixed at the top center of the Y-shaped coal storage bin, the piston rod of the second hydraulic cylinder passes through the Y-shaped coal storage bin, and an anchor hook is fixed at the bottom end of the piston rod of the second hydraulic cylinder.

[0010] Preferably, the anchor hook is integrally formed, with a conical bottom, a cross-shaped structure when viewed from above, and an arc-shaped upper surface around the top with the arc opening facing upwards.

[0011] The advantages of this utility model are: by adding a Y-shaped coal storage bin, the coal discharge capacity is expanded, which can reduce the frequency of coal blockage, and the self-made shear valve can quickly shear and close the discharge port of the Y-shaped coal storage bin, thus achieving the function of closing the valve. Attached image description:

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 A cross-sectional view of a homemade shear valve;

[0014] Figure 3 for Figure 2 A half-section diagram viewed from above;

[0015] Figure 4 for Figure 3 A diagram illustrating the structural changes in the state of the structure.

[0016] Figure 5 This is a schematic diagram of the anchor hook structure.

[0017] In the diagram: 1. Coal bunker; 2. Rubber expansion joint; 3. Y-shaped coal storage bunker; 4. Self-made shear valve; 4.1. Valve body; 4.11. Slot; 4.2. Protective plate; 4.3. Movable valve seat; 4.4. Valve plate; 4.41. Round hole; 4.5. Valve stem; 4.6. First hydraulic cylinder; 5. Slide valve; 6. Second hydraulic cylinder; 7. Anchor hook. Detailed implementation method:

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0019] Please see Figure 1-5 This utility model provides a technical solution for a Y-shaped coal feeding device for a gasifier:

[0020] A Y-shaped coal feeding device for a gasifier includes two coal bunkers 1. The bottom outlet of each coal bunker 1 is fixedly connected to the top of two rubber expansion joints 2. The bottom ends of the two rubber expansion joints 2 are fixedly connected to the top two inlet ends of the Y-shaped coal storage bunker 3. By using the rubber expansion joints 2 to provide a safe buffer connection between the coal bunker 1 and the Y-shaped coal storage bunker 3, the impact force of the coal on the surrounding area of ​​the connection can be reduced.

[0021] The Y-shaped coal storage bin 3, compared to the two existing inclined coal chutes, increases the coal flow space, thereby reducing the frequency of blockages during coal flow. A self-made shear valve 4 is installed at the bottom outlet of the Y-shaped coal storage bin 3, which is connected to the top inlet of the coal lock, placing the Y-shaped coal storage bin 3 above the coal lock. A slide valve 5 is installed at the bottom outlet of the coal bin 1, positioned above the rubber expansion joint 2.

[0022] The self-made shear valve 4 includes a valve body 4.1, a protective plate 4.2, a movable valve seat 4.3, a valve plate 4.4, a valve stem 4.5, and a first hydraulic cylinder 4.6. The valve body 4.1 has a slot 4.11, and the upper and lower ends of the slot 4.11 are fixed with the protective plate 4.2. Two symmetrically arranged movable valve seats 4.3 are rotatably arranged in the middle of the valve body 4.1. The end faces of the movable valve seats 4.3 and the protective plates 4.2 are movably fitted together. The valve plate 4.4 is slidably inserted between the two movable valve seats 4.3 and the two protective plates 4.2. A circular hole 4.41 with the same diameter as the bottom outlet of the Y-shaped coal storage bin 3 is opened on one side of the surface of the valve plate 4.4, so that the valve plate 4.4... 4. During the closing process, the valve plate 4.4 moves through the circular hole 4.41 to forcefully shear the coal blocks on its upper and lower surfaces, causing some coal blocks to remain in the circular hole 4.41 and others to be temporarily stored in the slot 4.11 as the valve plate 4.4 continues to move, thereby achieving the closing or opening of the valve. In order to drive the valve plate 4.4 to slide forcefully in the slot 4.11 within the valve body 4.1, one end of the valve stem 4.5 is fixedly connected to the valve plate 4.4, and the other end of the valve stem 4.5 is fixedly connected to the piston rod of the first hydraulic cylinder 4.6. The strong thrust and pull of the first hydraulic cylinder 4.6 are used to achieve the shearing effect.

[0023] When the piston rod of the first hydraulic cylinder 4.6 is fully extended, the circular hole 4.41 and the bottom outlet of the Y-shaped coal storage bin 3 are not connected. When the piston rod of the first hydraulic cylinder 4.6 is fully retracted, the circular hole 4.41 and the bottom outlet of the Y-shaped coal storage bin 3 are connected.

[0024] A second hydraulic cylinder 6 is fixed to the top center of the Y-shaped coal storage bin 3. The piston rod of the second hydraulic cylinder 6 passes through the Y-shaped coal storage bin 3, and an anchor hook 7 is fixed to the bottom end of the piston rod. The anchor hook 7 is integrally formed, with a conical bottom and a "+" structure when viewed from above. The upper surface of the top four sides is arc-shaped with the arc opening facing upwards. When coal blockage occurs in the Y-shaped coal storage bin 3, the piston rod of the second hydraulic cylinder 6 extends and retracts downwards, causing the anchor hook 7 to insert into the coal. Then, the piston rod of the second hydraulic cylinder 6 extends and retracts upwards, using the upper end face of the anchor hook 7 to lift some of the coal upwards, thus clearing the blockage.

[0025] The working principle is as follows: According to production needs, the number of slide gate valves 5 is selectively opened. By controlling the piston rod of the first hydraulic cylinder 4.6 on the self-made shear valve 4 to extend and retract, the valve plate 4.4 is controlled to slide in the slot 4.11. The position of the round hole 4.41 of the valve plate 4.4 is moved to perform strong shearing on the coal blocks on its upper and lower surfaces.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A Y-shaped coal feeding device for a gasification furnace, comprising two coal bins (1), characterized in that: The bottom outlet of each coal bunker (1) is fixedly connected to the top of two rubber expansion joints (2), and the bottom ends of the two rubber expansion joints (2) are fixedly connected to the top two inlets of the Y-shaped coal storage bunker (3). A self-made shear valve (4) is installed at the bottom outlet of the Y-shaped coal storage bunker (3). The bottom outlet of the Y-shaped coal storage bunker (3) is connected to the top inlet of the coal lock. The Y-shaped coal storage bunker (3) is located above the coal lock. A slide valve (5) is installed at the bottom outlet of the coal bunker (1). The slide valve (5) is located above the rubber expansion joints (2). The self-made shear valve (4) includes a valve body (4.1), a protective plate (4.2), a movable valve seat (4.3), a valve plate (4.4), a valve stem (4.5), and a first hydraulic cylinder (4.6). The valve body (4.1) is provided with a slot (4.11), and the upper and lower ends of the slot (4.11) are fixed with protective plates (4.2). The valve body (4.1) is rotatably provided with two symmetrically arranged movable valve seats (4.3) in the middle. The end faces of the movable valve seats (4.3) and the protective plates (4.2) are movably fitted together. The valve plate (4.4) is slidably inserted between the two movable valve seats (4.3) and the two protective plates (4.2). One end of the valve stem (4.5) is fixedly connected to the valve plate (4.4), and the other end of the valve stem (4.5) is fixedly connected to the piston rod of the first hydraulic cylinder (4.6).

2. A Y-shaped coal feeding device for a gasifier according to claim 1, characterized in that: A circular hole (4.41) with the same diameter as the bottom outlet of the Y-type coal storage bin (3) is provided on one side of the surface of the valve plate (4.4). When the piston rod of the first hydraulic cylinder (4.6) is fully extended, the circular hole (4.41) and the bottom outlet of the Y-type coal storage bin (3) are not connected. After the piston rod of the first hydraulic cylinder (4.6) is fully retracted, the circular hole (4.41) and the bottom outlet of the Y-type coal storage bin (3) are connected.

3. A Y-shaped coal feeding device for a gasifier according to claim 1, characterized in that: A second hydraulic cylinder (6) is fixed at the top center of the Y-shaped coal storage silo (3). The piston rod of the second hydraulic cylinder (6) passes through the Y-shaped coal storage silo (3). An anchor hook (7) is fixed at the bottom end of the piston rod of the second hydraulic cylinder (6).

4. A Y-shaped coal feeding device for a gasifier according to claim 3, characterized in that: The anchor hook (7) is integrally formed, with a conical bottom and a "+" structure when viewed from above. The upper surface of the top is arc-shaped and the arc opening faces upward.

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