Anti-blocking feeding hopper for wet salt production conveying line

Abstract

The utility model relates to the technical field of hopper, specifically relates to a kind of anti-blocking feed hopper for humid salt production conveying line;Including outer hopper, inner hopper and auxiliary mechanism, auxiliary mechanism includes sealing plate, electric heating tube, water inlet pipe, discharge pipe, mounting seat, temperature sensor, liquid level sensor and discharge device, by controlling electric heating tube work to store water cavity water heating, then after heat conduction can make inner hopper temperature rise, its inner wall will have certain temperature, so that humid salt can be preliminarily dried before entering drying bed when contacting with inner hopper inner wall in conveying, avoid the salt formed briquetting blockage feeding due to humid salt extrusion adhering on inner wall, further can solve the existing hopper when carrying out feeding humid salt when passing through barrel wall possibly because temperature difference leads to salt melting or adhering in barrel wall, after long time, it is easy to form firm adhering briquetting block in barrel wall interior, easy to cause conveying blockage, seriously influence the stable conveying of subsequent material, the problem of inconvenient use.

Description

Technical Field

[0001] This utility model relates to the field of hopper technology, and in particular to an anti-clogging feed hopper for a wet salt production conveyor line. Background Technology

[0002] During the processing of moist salt, it needs to be dried in a salt drying bed. When the moist salt is fed into the drying bed, it is transported to the hopper by a conveyor and then falls into the drying bed through the hopper.

[0003] Existing hoppers are generally barrel-shaped or square in structure. When wet salt passes through the cylinder wall, the temperature difference may cause the salt to melt or adhere to the cylinder wall. Over time, this can easily form a solid block of material inside the cylinder wall, causing blockage in the conveying process and seriously affecting the stable conveying of subsequent materials, making it inconvenient to use. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-clogging feed hopper for a wet salt production conveyor line. It aims to solve the problem that when the wet salt passes through the cylinder wall during feeding, the salt may melt or adhere to the cylinder wall due to temperature difference. Over time, this can easily form a firm adhered block inside the cylinder wall, causing conveying blockage, seriously affecting the stable conveying of subsequent materials, and making it inconvenient to use.

[0005] To achieve the above objectives, this utility model provides an anti-clogging feed hopper for a wet salt production conveyor line, comprising an outer hopper and an inner hopper, wherein the inner hopper is welded inside the outer hopper, and a water storage cavity is formed between the outer hopper and the inner hopper after welding;

[0006] It also includes auxiliary mechanisms;

[0007] The auxiliary mechanism includes a sealing plate, an electric heating tube, a water inlet pipe, a drain pipe, a mounting base, a temperature sensor, a liquid level sensor, and a discharge device. The sealing plate is detachably connected to the outer hopper and slidably connected to the inner hopper, and is located at the top of the outer hopper. The electric heating tube is mounted on the sealing plate and symmetrically arranged, with its heating working part extending into the water storage cavity. The water inlet pipe is mounted on the top of the sealing plate and communicates with both the water storage cavity and an external water supply pipe. The drain pipe is mounted on the top of the sealing plate and communicates with the water storage cavity. Multiple mounting bases are welded to the outer hopper at intervals. The temperature sensor is detachably connected to the mounting base, with its detection part extending into the water storage cavity. The liquid level sensor is detachably connected to the mounting base, with its detection part extending into the water storage cavity, and is located at the bottom and top sides of the outer hopper, respectively. The discharge device is located at the bottom side of the outer hopper.

[0008] An electric control valve and a mesh filter are sequentially installed at the inlet of the water inlet pipe near the outlet side of the external water supply pipe.

[0009] The discharge device includes an extraction pipe and an electric valve. The extraction pipe is welded to the bottom of the outer hopper. The electric valve is installed on the water outlet side of the extraction pipe and is connected to an external pipeline.

[0010] The straight section of the extraction pipe on the outlet side forms an angle of 7° with the bottom plane of the water storage cavity, and the inlet is as close as possible to the bottom of the water storage cavity, but does not contact the bottom end face of the water storage cavity.

[0011] The anti-clogging feed hopper for the wet salt production conveyor line also includes a protective mechanism, which includes a threaded sleeve and a mesh plate. The threaded sleeve is threadedly connected to the discharge pipe and is located on the outside of the top of the discharge pipe; the mesh plate is detachably installed on the top of the threaded sleeve.

[0012] This invention relates to an anti-clogging feed hopper for a wet salt production conveyor line. During feeding, water is introduced in advance through a water inlet pipe into the water storage cavity formed by the outer and inner hoppers. Then, the water is heated by an electric heating element controlled by a temperature sensor. The temperature is monitored so that the electric heating element stops when the required water temperature is reached. Through heat conduction, the inner hopper is heated, and its inner wall becomes warm. This allows the wet salt to undergo preliminary drying before entering the drying bed when it comes into contact with the inner wall of the inner hopper during conveying. This also avoids the problem of salt adhering to the inner wall due to compression, which is difficult to clean. It also greatly reduces the possibility of salt melting or adhering to the inner wall of the inner hopper and forming firm deposits over time. This solves the problem of existing hoppers where wet salt may melt or adhere to the cylinder wall due to temperature differences when passing through the cylinder wall, easily forming firm deposits inside the cylinder wall over time, causing conveying blockages, seriously affecting the stable conveying of subsequent materials, and causing inconvenience. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of the anti-clogging feed hopper for a wet salt production conveyor line according to the first embodiment of this utility model.

[0015] Figure 2 This is a schematic diagram of the extraction tube according to the first embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of the overall structure of the anti-clogging feed hopper for a wet salt production conveyor line according to the second embodiment of this utility model.

[0017] In the diagram: 101-Outer hopper, 102-Inner hopper, 103-Water storage chamber, 104-Sealing plate, 105-Electric heating tube, 106-Water inlet pipe, 107-Discharge pipe, 108-Mounting base, 109-Temperature sensor, 110-Level sensor, 111-Extraction pipe, 112-Electric valve, 113-Adjusting mechanism, 201-Threaded sleeve, 202-Mesh plate. Detailed Implementation

[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0019] Example 1:

[0020] like Figure 1 and Figure 2 As shown, where Figure 1 This is a schematic diagram of the overall structure of the anti-clogging feed hopper used in a wet salt production conveyor line. Figure 2 This is a schematic diagram of the extraction pipe 111. This utility model provides an anti-clogging feed hopper for a wet salt production conveying line: it includes an outer hopper 101, an inner hopper 102, and an auxiliary mechanism. The auxiliary mechanism includes a sealing plate 104, an electric heating tube 105, a water inlet pipe 106, a discharge pipe 107, a mounting base 108, a temperature sensor 109, a liquid level sensor 110, and a discharge device. The discharge device includes the extraction pipe 111 and an electric valve 112. The aforementioned solution solves the problem that in existing hoppers, when feeding, wet salt may melt or adhere to the cylinder wall due to temperature differences, easily forming firmly attached lumps inside the cylinder wall over time, causing conveying blockages and seriously affecting the stable conveying of subsequent materials, resulting in inconvenience. It is understood that the aforementioned solution can help avoid wet salt adhering to the inner wall and forming lumps that cause blockages, achieving stable feeding.

[0021] In this embodiment, the outer hopper 101 and the inner hopper 102 are welded and assembled to form an integral hopper structure. All electrical components mentioned in this application are electrically connected to the main controller and power supply. The main controller can be a control PLC and is a conventional, known device. Existing publicly available power connection technologies are not described in detail here.

[0022] The inner hopper 102 is welded inside the outer hopper 101, and after welding, a water storage cavity 103 is formed between the outer hopper 101 and the inner hopper 102. The bottom of the outer hopper 101 is provided with a through cavity to facilitate the circular end of the bottom of the inner hopper 102 to pass through for welding. Before welding the inner hopper 102, the extraction pipe 111 needs to be welded first.

[0023] The sealing plate 104 is detachably connected to the outer hopper 101 and slidably connected to the inner hopper 102, and is located at the top of the outer hopper 101. The electric heating tube 105 is installed on the sealing plate 104 and is symmetrically arranged, with its heating working part extending into the water storage cavity 103. The water inlet pipe 106 is installed on the top of the sealing plate 104 and is connected to the water storage cavity 103 and the external water supply pipe, respectively. The discharge pipe 107 is installed on the top of the sealing plate 104 and is connected to the water storage cavity 103. A plurality of mounting seats 108 are welded at intervals to the outer hopper 101. The temperature sensor 109 is detachably connected to the mounting seat 108, and its detection part extends into the water storage cavity 103. The liquid level sensor 110 is detachably connected to the mounting seat 108, and its detection part extends into the water storage cavity 103, and is located on the bottom and top sides of the outer hopper 101, respectively. The discharge device is located on the bottom side of the outer hopper 101. The sealing plate 104 is fixed by multiple bolts. An O-ring seal is provided at the sliding contact point between its internal cavity and the surface of the inner hopper 102 for sealing. The sealing ring is made of high-temperature resistant rubber. The fixing plate of the electric heating tube 105 is fixed by bolts. The mounting flange of the water inlet pipe 106 is fixed to the outside of the water inlet of the sealing plate 104 by bolts. There are three mounting bases 108. The fixing part of the temperature sensor 109 is fixed to the mounting base 108 by bolts for internal temperature monitoring. When the detected temperature reaches the required value, the control PLC will cut off the power supply to the electric heating tube 105. When the detected temperature is lower than the minimum operating value, the control PLC will turn on the power supply of the electric heating tube 105 for heating. The fixing part of the liquid level sensor 110 is fixed to the mounting base 108 by bolts for internal water level monitoring. After the liquid level sensor 110 on the top side detects the water level signal, the water level reaches the maximum limit position and no more water is added. The electric control valve on the water inlet pipe 106 side is closed. When the liquid level sensor 110 on the bottom side detects the water level signal, the water level is low, and the control PLC controls the electric control valve on the water inlet pipe 106 side to open and add water. An adjustment mechanism 113 is provided on the right side of the sealing plate 104 to adjust the working height of the hopper. The adjustment mechanism 113 consists of a fixed bracket, a sliding bracket, and a connector. The fixed bracket can be fixed with bolts. The sliding bracket is fixed and adjusted by engaging with mating holes at different positions on multiple fixed brackets through the connector. Two rectangular arms at the bottom of the sliding bracket each have a single coaxial through-hole, and a 0.6mm thick tungsten carbide coating is applied to the surface of the rectangular arms to improve wear resistance. The connector uses a T-shaped screw and a nut. One end of the sliding bracket is connected to the sealing plate 104 with bolts. The discharge device is used to remove water from the water storage chamber 103 for replacement.

[0024] Secondly, an electric control valve and a mesh filter are sequentially installed at the inlet of the water inlet pipe 106 near the outlet side of the external water supply pipe. The electric control valve is used for automatic control during water delivery. The mesh filter is I-shaped with connecting flanges on both sides. The filter screen is installed in the stepped cavity on the water inlet side using countersunk bolts. During water delivery, water is transported to the mesh filter through the external pipeline, filtered, and then passed through the electric control valve, and finally delivered into the water storage chamber 103 through the water inlet pipe 106.

[0025] Then, the extraction pipe 111 is welded to the bottom of the outer hopper 101; the electric valve 112 is installed on the outlet side of the extraction pipe 111 and is connected to an external connecting pipe. The inner hopper 102 is welded after the extraction pipe 111 is welded. The inlet flange of the electric valve 112 is connected to the outlet flange on the extraction pipe 111 via a screw and nut, and the outlet flange of the electric valve 112 is connected to the flange on the input pipe of the external sewage pump.

[0026] Finally, the straight pipe section on the outlet side of the extraction pipe 111 forms a 7° angle with the bottom plane of the water storage chamber 103, and the inlet is as close as possible to the bottom of the water storage chamber 103, but does not contact the bottom end face of the water storage chamber 103. In this structure, the inlet of the extraction pipe 111 being as close as possible to the bottom of the water storage chamber 103, but not contacting the bottom end face of the water storage chamber 103, facilitates the maximum removal and replacement of water inside the water storage chamber 103. The straight pipe section on the outlet side of the extraction pipe 111 is located near the electric valve 112.

[0027] When using this invention to avoid the formation of material lumps by moist salt adhering to the inner wall and causing blockage, and to achieve stable feeding, a certain amount of water is introduced into the water storage cavity 103 formed by the outer hopper 101 and the inner hopper 102 through the water inlet pipe 106 before feeding. The external conveyor transports the salt into the inner hopper 102, and finally, it is transported into the drying bed for drying through the inner hopper 102. Then, the water is heated by controlling the operation of the electric heating tube 105, and the temperature sensor 109 monitors the temperature. Once the required water temperature is reached, the PLC controls the electric heating tube 105 to stop working. Then, through heat conduction, the inner hopper 102 is heated. After the inner hopper 102 is heated, Its inner wall will have a certain temperature, so that when the moist salt comes into contact with the inner wall of the inner hopper 102 during the conveying process, it can be preliminarily dried before entering the drying bed. At the same time, it avoids the situation where the moist salt adheres to the inner wall due to compression and is difficult to clean. It also greatly reduces the situation where the salt melts or adheres to the inner wall of the inner hopper 102 and forms a firm adhered material block after a long time. In this way, it can solve the problem that when the existing hopper is feeding, the moist salt may melt or adhere to the inner wall of the cylinder due to temperature difference. Over time, it is easy to form a firm adhered material block inside the cylinder wall, which can easily cause conveying blockage, seriously affect the stable conveying of subsequent materials, and cause inconvenience in use.

[0028] Example 2:

[0029] like Figure 3 As shown, where Figure 3 This is a schematic diagram of the overall structure of an anti-clogging feed hopper for a wet salt production conveyor line. Based on the first embodiment, this utility model provides an anti-clogging feed hopper for a wet salt production conveyor line. The anti-clogging feed hopper for a wet salt production conveyor line also includes a protective mechanism, which includes a threaded sleeve 201 and a mesh plate 202.

[0030] The threaded sleeve 201 is threadedly connected to the discharge pipe 107 and is located on the outer side of the top of the discharge pipe 107; the mesh plate 202 is detachably installed on the top of the threaded sleeve 201. The top of the discharge pipe 107 is provided with an external thread end, which facilitates the direct installation of the threaded sleeve 201, and the mesh plate 202 is fixed by bolts.

[0031] In this embodiment, since the function of the discharge pipe 107 is to discharge hot steam during heating, it is connected to the outside. Some impurities will easily enter the interior through the discharge pipe 107. However, by setting the threaded sleeve 201 and the mesh plate 202, a filter structure can be formed, which can reduce the entry of external impurities into the interior when the hot steam is discharged stably.

[0032] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A clog-resistant feed hopper for a wet salt production conveyor line, comprising an outer hopper and an inner hopper, characterized in that: The inner hopper is welded inside the outer hopper, and after welding, a water storage cavity is formed between the outer hopper and the inner hopper; It also includes auxiliary mechanisms; The auxiliary mechanism includes a sealing plate, an electric heating tube, a water inlet pipe, a drain pipe, a mounting base, a temperature sensor, a liquid level sensor, and a discharge device. The sealing plate is detachably connected to the outer hopper and slidably connected to the inner hopper, and is located at the top of the outer hopper. The electric heating tube is mounted on the sealing plate and symmetrically arranged, with its heating working part extending into the water storage cavity. The water inlet pipe is mounted on the top of the sealing plate and communicates with both the water storage cavity and an external water supply pipe. The drain pipe is mounted on the top of the sealing plate and communicates with the water storage cavity. Multiple mounting bases are welded to the outer hopper at intervals. The temperature sensor is detachably connected to the mounting base, with its detection part extending into the water storage cavity. The liquid level sensor is detachably connected to the mounting base, with its detection part extending into the water storage cavity, and is located at the bottom and top sides of the outer hopper, respectively. The discharge device is located at the bottom side of the outer hopper.

2. The anti-clogging feed hopper for a wet salt production conveyor line as described in claim 1, characterized in that: An electric control valve and a mesh filter are sequentially installed at the inlet of the water inlet pipe near the outlet side of the external water supply pipe.

3. The anti-clogging feed hopper for a wet salt production conveyor line as described in claim 1, characterized in that: The discharge device includes an extraction pipe and an electric valve. The extraction pipe is welded to the bottom of the outer hopper. The electric valve is installed on the water outlet side of the extraction pipe and is connected to an external pipeline.

4. The anti-clogging feed hopper for a wet salt production conveyor line as described in claim 3, characterized in that: The straight section of the extraction pipe on the outlet side forms an angle of 7° with the bottom plane of the water storage cavity, and the inlet is as close as possible to the bottom of the water storage cavity, but does not contact the bottom end face of the water storage cavity.

5. The anti-clogging feed hopper for a wet salt production conveyor line as described in claim 1, characterized in that... : The anti-clogging feed hopper for the wet salt production conveyor line also includes a protective mechanism, which includes a threaded sleeve and a mesh plate. The threaded sleeve is threadedly connected to the discharge pipe and is located on the outside of the top of the discharge pipe; the mesh plate is detachably installed on the top of the threaded sleeve.

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