Nondestructive screw coal feeder for coking coal unloading

Abstract

This utility model belongs to the field of spiral coal feeding and provides a non-destructive spiral coal feeder for coking coal unloading. The spiral coal feeder includes a spiral conveyor with multiple discharge ports at its bottom and along its length. Each discharge port is equipped with a fixed seat, and the fixed seat contains a material gate for adjusting the size of the discharge port. A discharge bin is located at the bottom of the fixed seat, and the bottom of the discharge bin forms two discharge compartments. An adjusting shaft is rotatably mounted at the intersection of the two discharge compartments. A pair of shallow grooves are formed on the adjusting shaft, and clamping plates are fixed on the shallow grooves. An adjusting plate is located between the two clamping plates, and a baffle is also provided at the bottom of the clamping plates. A drive reducer for driving the adjusting shaft to rotate is provided on the side wall of the discharge bin. The purpose of this utility model is to provide a non-destructive spiral coal feeder for coking coal unloading, aiming to solve the problems of low adaptability of existing non-destructive spiral coal feeders and the inability to adjust the size of the discharge port according to actual working needs.

Description

Technical Field

[0001] This utility model belongs to the field of spiral coal feeding, and in particular relates to a non-destructive spiral coal feeder for coking coal unloading. Background Technology

[0002] Coal coking is a coal conversion process that uses coal as raw material, heats it to about 950°C in the absence of air, and produces coke through high-temperature dry distillation. At the same time, it obtains coal gas, coal tar, and recovers other chemical products. The main use of coke is in iron smelting, and a small amount is used as a chemical raw material to manufacture calcium carbide, electrodes, etc. Coal tar is a black, viscous, oily liquid containing important chemical raw materials such as benzene, phenol, naphthalene, anthracene, and phenanthrene. These are raw materials for the pharmaceutical, pesticide, explosive, and dye industries, and can be separated one by one with appropriate treatment.

[0003] Coal feeders are crucial pieces of equipment in coking plants. Currently, each coal feeder is used on a single conveyor line, meaning the raw coal in the feeder can only be transported to the coking system via that single line, resulting in limited adaptability. Furthermore, most existing coal feeders only have a single discharge port, and the size of the discharge port cannot be adjusted according to actual operational needs. Utility Model Content

[0004] In view of the above problems, the purpose of this utility model is to provide a non-destructive screw feeder for coking coal unloading, which aims to solve the problems of low adaptability of existing non-destructive screw feeders and the inability to adjust the size of the discharge port according to the actual working needs.

[0005] The present invention adopts the following technical solution: the screw feeder includes a screw conveyor, the bottom of the screw conveyor has multiple discharge ports along its length, each discharge port is provided with a fixed seat, the fixed seat is provided with a material gate for adjusting the size of the discharge port, the bottom of the fixed seat is provided with a discharge bin, the bottom of the discharge bin forms two discharge bins, an adjusting shaft is rotatably provided at the intersection of the two discharge bins, a pair of shallow grooves are opened on the adjusting shaft, clamps are fixed on the shallow grooves, an adjusting plate is provided between the two clamps, a baffle is also provided at the bottom of the clamps, and a drive reducer for driving the adjusting shaft to rotate is provided on the side wall of the discharge bin.

[0006] Furthermore, the material gate is slidably installed in the fixed seat, the bottom of the material gate is provided with a straight rack, the fixed seat is provided with a dividing plate, the dividing plate divides the fixed seat into a material dropping area and an installation area, the fixed seat is provided with a gear in the installation area and the gear meshes with the straight rack, and the side wall of the fixed seat is also provided with an adjusting reducer for driving the gear to rotate.

[0007] Furthermore, the dividing plate has matching clearance notches corresponding to the material gate and the straight toothed rack.

[0008] Furthermore, the bottom of each plywood is bent outwards and downwards.

[0009] Furthermore, the side wall of the feeding hopper has an inspection port, and the side wall of the feeding hopper is provided with a threaded sleeve and an inspection door respectively corresponding to the inspection port. The threaded sleeve is fixedly installed and the inspection door is rotatably installed. The top of the inspection door is provided with a side block, and a locking screw is inserted through the side block and screwed into the threaded sleeve.

[0010] The beneficial effects of this utility model are as follows: In this screw feeder, the adjustment shaft is driven to rotate by the drive reducer, so that the adjustment plate rotates toward the top opening of either feed hopper and the adjustment plate is close to the top opening of the feed hopper. At this time, the feed hopper is closed, and the raw coal can only be discharged from the other feed hopper and fall onto the conveying mechanism below it for feeding. Similarly, the size of the discharge port is adjusted by the material gate to adapt to different working requirements. Attached Figure Description

[0011] Figure 1 This utility model provides an overall drawing of a non-destructive spiral feeder for coking coal unloading.

[0012] Figure 2 This utility model provides a schematic diagram of the interior of the material discharge bin.

[0013] Figure 3 This utility model provides a schematic diagram of the installation of a straight rack and gear.

[0014] Figure 4 This utility model provides a schematic diagram of the material gate installation.

[0015] Figure 5 This utility model provides a schematic diagram of the adjusting shaft structure. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model patent clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0017] To illustrate the technical solution described in this utility model, specific embodiments are described below.

[0018] For ease of explanation, only the parts relevant to the embodiments of this utility model are shown.

[0019] Combination Figure 1-5As shown, the screw feeder includes a screw conveyor 1. Multiple material discharge ports are opened at the bottom and along the length of the screw conveyor 1. Each material discharge port is equipped with a fixed seat 2. A material gate 3 for adjusting the size of the material discharge port is provided inside the fixed seat 2. A material discharge bin 4 is provided at the bottom of the fixed seat 2. Two discharge bins 5 are formed at the bottom of the material discharge bins 4. An adjusting shaft 6 is rotatably provided at the intersection of the two discharge bins 5. A pair of shallow grooves 7 are opened on the adjusting shaft 6. Clamping plates 8 are fixed on the shallow grooves 7. An adjusting plate 9 is provided between the two clamping plates 8. A baffle 10 is also provided at the bottom of the clamping plates 8. A drive reducer 11 for driving the adjusting shaft 6 to rotate is provided on the side wall of the material discharge bin 4. A conveying mechanism (not shown in the figure) is also provided at the bottom of each discharge bin. The conveying mechanism can be a belt conveyor.

[0020] Coal feeders are crucial pieces of equipment in coking plants. This screw feeder includes a screw conveyor, which serves as the main conveyor for raw coal. The raw coal is poured into the screw conveyor's inlet, transported by the screw conveyor, and then falls from the discharge port into the corresponding discharge bin. From there, it falls onto the corresponding conveying mechanism, which transports the raw coal to the coking system for the relevant coking processes. The screw conveyor and conveying mechanism are existing technologies and will not be described in detail here.

[0021] In this embodiment, the screw conveyor has two discharge ports at its bottom, and each discharge hopper has two discharge bins at its bottom, forming an inverted Y-shaped structure. An adjusting plate is rotatably installed at the intersection of the two discharge bins. When the drive reducer rotates the adjusting shaft, causing the adjusting plate to rotate toward the top opening of either discharge bin and press against the top opening of that bin, that discharge bin is closed. Raw coal can only be discharged from the other discharge bin and fall onto the conveying mechanism below it for feeding. The baffle plate also improves the sealing of the discharge bin, preventing small amounts of raw coal from falling into it through gaps at the bottom of the clamping plate.

[0022] Of course, if the adjusting plate is set in a vertical position, then both feeding hoppers are in the open state. The opening and closing of the two feeding hoppers is controlled by adjusting and rotating the adjusting plate to adapt to the actual working conditions on site. The whole process is relatively simple.

[0023] In this embodiment, as Figure 2 Multiple sets of threaded holes (obscured in the diagram) are drilled at corresponding positions on both the clamping plate and the adjusting plate. Multiple fixing bolts 12 are inserted into one of the clamping plates 8, and each fixing bolt 12 passes through the adjusting shaft and emerges from the other clamping plate, where it is locked. At this point, the adjusting plate is positioned between the two clamping plates. After adjusting the position of the adjusting plate, fixing screws 13 are screwed into the same set of threaded holes to complete the installation of the adjusting plate. The adjusting plate has a detachable design, facilitating future maintenance, replacement, and other related work.

[0024] The clamps are installed in shallow grooves, which, with their limiting effect, ensure a more stable and reliable installation, thus improving the stability of the adjusting plate. Each clamp is bent outwards and downwards at its bottom. This allows for a closer fit between the clamp and the adjusting shaft, facilitating the installation of the adjusting plate.

[0025] As a preferred structure, the side wall of the feeding bin 5 has an inspection port. The side wall of the feeding bin 5 is provided with a threaded sleeve 14 and an inspection door 15 respectively corresponding to the inspection port. The threaded sleeve 14 is fixedly installed and the inspection door 15 is rotatably installed. The top of the inspection door 15 is provided with a side block 16. A locking screw 17 is inserted into the side block 16 and screwed into the threaded sleeve.

[0026] In practice, the condition inside the material hopper can be viewed through the two inspection ports. To open the corresponding inspection door, simply unscrew the corresponding locking screw.

[0027] Furthermore, as a preferred structure, such as Figure 3-4 The material gate 3 is slidably installed in the fixed seat 2. The bottom of the material gate 3 is provided with a straight rack 18. The fixed seat 2 is provided with a split plate 19, which divides the fixed seat into a material dropping area and an installation area. The fixed seat 2 is provided with a gear 20 in the installation area, and the gear 20 is meshed with the straight rack 18. The side wall of the fixed seat 2 is also provided with an adjusting reducer 21 for driving the gear 20 to rotate.

[0028] In this structure, the upper end of the material discharge area is the material discharge port, and the lower end is connected to the material discharge bin. A material gate is provided within the fixed base for adjusting the size of the material discharge area; that is, the size of the material discharge port is adjusted via the material gate. When it is necessary to adjust the size of the material discharge port to control the flow rate of the raw coal, the reducer drives the drive gear to rotate, the rack moves, and thus the material gate moves back and forth corresponding to the material discharge port to control the size of the material discharge port. When the material gate completely blocks the material discharge port, the material discharge port is closed.

[0029] In addition, the dividing plate 19 has matching clearance notches 22 corresponding to the material gate 3 and the straight rack 18. During the process of adjusting the size of the material outlet, the material gate and the straight rack pass through the clearance notches.

[0030] 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 and improvements 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 non-destructive screw feeder for coking coal unloading, characterized in that: The screw feeder includes a screw conveyor with multiple discharge ports at its bottom and along its length. Each discharge port is equipped with a fixed seat, and the fixed seat contains a material gate for adjusting the size of the discharge port. A discharge bin is located at the bottom of the fixed seat, and the bottom of the discharge bin forms two discharge compartments. An adjusting shaft is rotatably installed at the intersection of the two discharge compartments. A pair of shallow grooves are opened on the adjusting shaft, and clamping plates are fixed on the shallow grooves. An adjusting plate is installed between the two clamping plates, and a baffle is also provided at the bottom of the clamping plates. A drive reducer for driving the adjusting shaft to rotate is provided on the side wall of the discharge bin.

2. The non-destructive screw feeder for coking coal unloading as described in claim 1, characterized in that: The material gate is slidably installed in the fixed seat. The bottom of the material gate is provided with a straight rack. The fixed seat is provided with a dividing plate, which divides the fixed seat into a material dropping area and an installation area. The fixed seat is provided with a gear in the installation area, and the gear meshes with the straight rack. The side wall of the fixed seat is also provided with an adjusting reducer for driving the gear to rotate.

3. The non-destructive screw feeder for coking coal unloading as described in claim 2, characterized in that: The dividing plate has matching clearance notches for the material gate and the straight toothed rack.

4. The non-destructive screw feeder for coking coal unloading as described in claim 3, characterized in that: Each plywood panel has its bottom facing outwards and bent downwards.

5. The non-destructive screw feeder for coking coal unloading as described in claim 4, characterized in that: The side wall of the feeding hopper has an inspection port. The side wall of the feeding hopper is provided with a threaded sleeve and an inspection door respectively corresponding to the inspection port. The threaded sleeve is fixedly installed and the inspection door is rotatably installed. The top of the inspection door is provided with a side block, and a locking screw is inserted through the side block and screwed into the threaded sleeve.

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