Plug board feeder

Abstract

The utility model belongs to the technical field of wet sludge treatment, and particularly relates to an inserting plate feeder which comprises a hydraulic oil cylinder, a middle support and a feeding valve body, the hydraulic oil cylinder is installed on the top face of the middle support, the feeding valve body is connected with the bottom face of the middle support, an inserting plate is arranged in the middle support, and the inserting plate is connected with the feeding valve body. The end of a piston rod of the hydraulic oil cylinder is connected with the inserting plate, a through hole is formed in the bottom of the middle support, the shape of the through hole is matched with the shape of the cross section of the inserting plate, a cavity is formed in the feeding valve body, the shape of the cross section of the cavity is matched with the shape of the cross section of the inserting plate, and the hydraulic oil cylinder is arranged in the cavity. A valve body feeding port is formed in the middle of the feeding valve body, a valve body discharging port is formed in the bottom of the feeding valve body, and a water cooling assembly is arranged on the lower portion of the feeding valve body. The feeding valve body is continuously cooled through the water cooling assembly, the temperature of the lower portion of the feeding valve body and the temperature of the discharging port of the valve body are prevented from rising, and damage to the feeding valve body is avoided.

Description

Technical Field

[0001] The utility model relates to a plug feeder, belonging to the technical field of wet sludge treatment. Background Art

[0002] At present, sludge is generated in river cleaning, industrial production and residential life. With the continuous improvement of the urban sewage treatment rate in China, the sludge output of urban sewage treatment plants has increased sharply. At present, among various sludge disposal methods in China, sludge drying technology is mostly used for disposal. In recent years, the localization of sludge drying system equipment has developed rapidly. Sludge co-incineration is one of the development trends of sludge heat treatment, and large-scale engineering demonstration applications have been realized in China. In the application of direct sludge co-incineration, a circular injection pipe form is generally adopted to inject sludge into the furnace. Since the outlet of the feeder is in contact with high-temperature flames and flue gas for a long time, the temperature rises. Under the action of thermal radiation, the outlet part is easily burned out. The wet sludge in the injection pipe is easily dried and blocked due to the temperature, affecting the feeding efficiency.

[0003] Therefore, how to avoid the damage of the outlet part of the feeder and the reduction of the feeding efficiency caused by the high temperature in the incinerator is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Utility Model

[0004] The utility model aims at the above defects of the prior art and provides a plug feeder.

[0005] The technical solution for the utility model to solve the above technical problems is as follows:

[0006] A plug feeder includes a hydraulic cylinder, an intermediate support and a feed valve body. The hydraulic cylinder is installed on the top surface of the intermediate support. The feed valve body is connected to the bottom surface of the intermediate support. An insertion plate is arranged in the intermediate support. The end of the piston rod of the hydraulic cylinder is connected to the insertion plate. A through hole is arranged at the bottom of the intermediate support. The shape of the through hole is adapted to the cross-sectional shape of the insertion plate. A cavity is arranged in the feed valve body. The cross-sectional shape of the cavity is adapted to the cross-sectional shape of the insertion plate. A valve body feed port is arranged in the middle of the feed valve body. A valve body discharge port is arranged at the bottom of the feed valve body. A water cooling component is arranged at the lower part of the feed valve body.

[0007] The beneficial effect of the utility model lies in that: a water cooling component is arranged at the lower part of the feed valve body. During the feeding process of the plug feeder, the feed valve body is continuously cooled by the water cooling component, preventing the lower part of the feed valve body and the valve body discharge port from rising in temperature due to long-term contact with high-temperature flames and high-temperature flue gas, and avoiding the damage of the feed valve body.

[0008] On the basis of the above technical solutions, the utility model can also make the following improvements:

[0009] Furthermore, the water-cooling component includes a water-cooling cavity, which is welded to the feed valve body, and the water-cooling cavity is provided with a cooling water inlet and a cooling water outlet.

[0010] The beneficial effect of adopting the above further technical solution is that the water-cooling cavity is welded to the feed valve body, and the feed valve body is cooled by introducing cooling water into the water-cooling cavity.

[0011] Furthermore, a sealing component is provided at the upper part of the feed valve body, and the sealing component is arranged between the plug plate and the feed valve body.

[0012] The beneficial effect of adopting the above further technical solution is that a sealing component is arranged between the plug plate and the feed valve body to seal the material in the feed valve body and prevent the material from leaking through the gap between the plug plate and the feed valve body.

[0013] Furthermore, the sealing component is a sealing ring, which is arranged on the inner wall of the upper part of the feed valve body, and the shape of the sealing ring is adapted to the cross-sectional shape of the plug plate.

[0014] The beneficial effect of adopting the above further technical solution is that the sealing ring has elasticity and is in close contact with the plug plate. In addition to providing a sealing function for the material, during the up and down movement of the plug plate, the sealing ring can also clean the material dried on the surface of the plug plate due to high temperature through friction.

[0015] Furthermore, a valve body overhaul port is provided on the feed valve body, and the valve body overhaul port is arranged corresponding to the valve body feed port.

[0016] The beneficial effect of adopting the above further technical solution is that when there is a foreign object in the feed valve body or at the valve body feed port causing the material to be stuck, it can be inspected and repaired through the valve body overhaul port.

[0017] Furthermore, a cover plate is provided on the valve body overhaul port.

[0018] The beneficial effect of adopting the above further technical solution is that the valve body overhaul port is sealed by the cover plate during the operation of the plug feeder, and the cover plate is opened for inspection when maintenance is required.

[0019] Furthermore, the feed valve body includes a valve body one and a valve body two which are oppositely arranged, and a cavity is formed between the valve body one and the valve body two.

[0020] Furthermore, the valve body feed port is arranged on the valve body one, and the valve body overhaul port is arranged on the valve body two.

[0021] Furthermore, water-cooling components are provided at the lower parts of both the valve body one and the valve body two.

[0022] Furthermore, the shape of the valve body discharge port is adapted to the cross-sectional shape of the plug board.

[0023] The beneficial effects of adopting the above further technical solution are as follows: If the valve body discharge port is blocked due to the drying of materials caused by high temperature, the hydraulic cylinder drives the plug board to move up and down in the cavity. When the plug board is inserted into the position of the valve body discharge port, the materials in the cavity and the valve body discharge port can be dredged once, and at the same time, it plays a role in pushing the materials. After the plug board is lifted in place, the materials can continue to fall out from the valve body discharge port and enter the incinerator for incineration. Description of the Drawings

[0024] Figure 1 is the front view of the present utility model;

[0025] Figure 2 is the schematic diagram of the internal structure of the present utility model;

[0026] Figure 3 is the left view of the present utility model;

[0027] Figure 4 is the schematic diagram of the internal structure of the feeding valve body of the present utility model.

[0028] The reference numerals are recorded as follows: 1201, hydraulic cylinder; 1202, intermediate support; 1203, feeding valve body; 1204, sealing assembly; 1205, valve body overhaul port; 1206, cavity; 1207, plug board; 1208, cover plate; 1209, water cooling assembly; 1210, valve body feeding port; 1211, cooling water outlet; 1212, cooling water inlet; 1213, valve body discharge port. Detailed Embodiments

[0029] The principles and features of the present utility model are described below with reference to the accompanying drawings. The examples given are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0030] See Figures 1 - 4, A plug feeder, comprising a hydraulic cylinder 1201, an intermediate support 1202 and a feeder valve body 1203. The hydraulic cylinder 1201 is installed on the top surface of the intermediate support 1202, and the feeder valve body 1203 is connected to the bottom surface of the intermediate support 1202. An insertion plate 1207 is provided inside the intermediate support 1202, and the end of the piston rod of the hydraulic cylinder 1201 is connected to the insertion plate 1207. A through hole is provided at the bottom of the intermediate support 1202, and the shape of the through hole is adapted to the cross-sectional shape of the insertion plate 1207. A cavity 1206 is provided inside the feeder valve body 1203, and the cross-sectional shape of the cavity 1206 is adapted to the cross-sectional shape of the insertion plate 1207. A valve body feed port 1210 is provided in the middle of the feeder valve body 1203, and a valve body discharge port 1213 is provided at the bottom of the feeder valve body 1203. The shape of the valve body discharge port 1213 is adapted to the cross-sectional shape of the insertion plate 1207. A water cooling component 1209 is provided at the lower part of the feeder valve body 1203.

[0031] The water cooling component 1209 includes a water cooling cavity, which is welded to the feeder valve body 1203, and a cooling water inlet 1212 and a cooling water outlet 1211 are provided on the water cooling cavity.

[0032] A sealing component 1204 is provided at the upper part of the feeder valve body 1203, and the sealing component 1204 is arranged between the insertion plate 1207 and the feeder valve body 1203.

[0033] The sealing component 1204 is a sealing ring, which is arranged on the inner wall of the upper part of the feeder valve body 1203, and the shape of the sealing ring is adapted to the cross-sectional shape of the insertion plate 1207.

[0034] In this embodiment, the cross-sectional shape of the insertion plate 1207 is square. Correspondingly, the cross-sectional shapes of the sealing ring, the cavity 1206, the valve body discharge port 1213 and the through hole are all square.

[0035] A valve body inspection port 1205 is provided on the feeder valve body 1203, and the valve body inspection port 1205 is arranged corresponding to the valve body feed port 1210.

[0036] A cover plate 1208 is provided on the valve body inspection port 1205.

[0037] The feeder valve body 1203 includes a valve body one and a valve body two which are oppositely arranged, and the cavity 1206 is formed between the valve body one and the valve body two.

[0038] The valve body feed port 1210 is provided on the valve body one, and the valve body inspection port 1205 is provided on the valve body two.

[0039] The lower parts of the first valve body and the second valve body are both provided with a water cooling component 1209.

[0040] The working process of the utility model is as follows:

[0041] When the system runs, the material is conveyed through a pipeline to the valve body feed inlet 1210 of the flap feeder under the pushing action of a pump. When the flap 1207 is lifted and opened, the material enters the cavity 1206 of the feed valve body 1203. The material reaches the valve body discharge outlet 1213 through the cavity 1206 and drops into the incinerator, and the material enters the incinerator for incineration.

[0042] Due to the high temperature in the incinerator, under the action of heat radiation, the material in the cavity 1206 is prone to being dried and blocking the channel. The hydraulic cylinder 1201 is started regularly. The piston rod of the hydraulic cylinder 1201 expands and contracts to drive the flap 1207 to move up and down in the cavity 1206. When the flap 1207 is inserted to the position of the valve body discharge outlet 1213, the sludge in the cavity 1206 can be dredged once, and the material at the valve body discharge outlet 1213 is pushed into the incinerator, playing a role of pushing the material. Then the piston rod of the hydraulic cylinder 1201 contracts to drive the flap 1207 to lift. After the flap 1207 is lifted in place, the material can continue to drop from the position of the valve body discharge outlet 1213 into the incinerator for incineration.

[0043] A flap feeder involved in the utility model is a feeding mechanism in a direct co-incineration treatment system for sludge. It continuously pushes wet sludge into the incineration system through the valve body discharge outlet 1213 by means of the flap 1207. Due to the high temperature in the incinerator, the temperature of the valve body discharge outlet 1213 of the flap feeder rises after long-term contact with high-temperature flames and flue gas, and the valve body discharge outlet 1213 is also prone to being damaged. In order to prevent the wet sludge in the valve body discharge outlet 1213 and the feed valve body 1203 of the flap feeder from being dried and blocking the channel under the action of heat radiation, the utility model dredges the valve body discharge outlet 1213 by regularly pushing the push plate 1207 downward to feed the material, and continuously reduces the temperature of the valve body discharge outlet 1213 through the cooling water of the water cooling component 1209, avoiding the influence of the system temperature on the discharging effect of the flap feeder and reducing the failure rate.

[0044] The above are only the preferred embodiments of the utility model, and are not intended to limit the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the utility model shall be included within the protection scope of the utility model.

Claims

1. A plate feeder, characterized in that: The invention comprises a hydraulic cylinder (1201), an intermediate support (1202) and a feeding valve body (1203), wherein the hydraulic cylinder (1201) is mounted on the top surface of the intermediate support (1202), the feeding valve body (1203) is connected to the bottom surface of the intermediate support (1202), a plug plate (1207) is provided in the intermediate support (1202), the piston rod end of the hydraulic cylinder (1201) is connected to the plug plate (1207), and a through hole is provided at the bottom of the intermediate support (1202). The shape of the through hole is compatible with the cross-sectional shape of the plug plate (1207); a cavity (1206) is provided in the feeding valve body (1203); the cross-sectional shape of the cavity (1206) is compatible with the cross-sectional shape of the plug plate (1207); a valve body feed port (1210) is provided in the middle of the feeding valve body (1203); a valve body discharge port (1213) is provided at the bottom of the feeding valve body (1203); and a water cooling component (1209) is provided at the lower part of the feeding valve body (1203).

2. The insert plate feeder according to claim 1, characterized in that: The water cooling component (1209) comprises a water cooling cavity, the water cooling cavity is welded to the feeding valve body (1203), and a cooling water inlet (1212) and a cooling water outlet (1211) are provided on the water cooling cavity.

3. The insert plate feeder according to claim 2, characterized in that: A sealing assembly (1204) is provided on the upper portion of the feeding valve body (1203), and the sealing assembly (1204) is provided between the plug plate (1207) and the feeding valve body (1203).

4. The insert plate feeder according to claim 3, characterized in that: The sealing component (1204) is a sealing ring, which is arranged on the inner wall of the upper part of the feeding valve body (1203), and the shape of the sealing ring is compatible with the cross-sectional shape of the plug plate (1207).

5. The insert plate feeder according to claim 4, characterized in that: The feeding valve body (1203) is provided with a valve body inspection port (1205), and the valve body inspection port (1205) is arranged corresponding to the valve body feed port (1210).

6. The insert plate feeder according to claim 5, characterized in that: A cover plate (1208) is provided on the valve body inspection port (1205).

7. The insert plate feeder according to claim 6, characterized in that: The feeding valve body (1203) comprises a valve body 1 and a valve body 2 which are arranged opposite to each other, and the cavity (1206) is formed between the valve body 1 and the valve body 2.

8. The insert plate feeder according to claim 7, characterized in that: The valve body feed port (1210) is arranged on the valve body one, and the valve body inspection port (1205) is arranged on the valve body two.

9. The insert plate feeder according to claim 8, characterized in that: The lower parts of the valve body 1 and the valve body 2 are both provided with a water cooling component (1209).

10. The insert plate feeder according to claim 1, characterized in that: The shape of the valve body outlet (1213) is compatible with the cross-sectional shape of the plug plate (1207).

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