Carbonization furnace push rod sealing device
By improving the floating cylinder sealing structure and quick-assembly components of the carbonization furnace pusher sealing device, the problems of water and air leakage caused by the wear of sealing materials were solved, achieving improved sealing reliability and extended service life, and simplifying installation and disassembly operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENMU KEDA MINING & METALLURGY EQUIP CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-05-05
AI Technical Summary
Existing carbonization furnace push rods suffer from wear of sealing materials due to installation errors or high-temperature deformation, resulting in water and gas leaks and serious environmental pollution.
The system employs floating and quick-connect components, improves the sealing structure to a floating cylinder seal, uses piston rings and fluororubber seals for composite sealing, extends the life of the sealing materials through oil lubrication, and achieves quick disassembly and installation by combining a limit shaft and a support spring.
It effectively prevents damage to sealing materials, ensures sealing performance, avoids water and air leakage, extends the service life of sealing materials, and simplifies the installation and disassembly process.
Smart Images

Figure CN224200892U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of carbonization furnace feeding technology, specifically a carbonization furnace push rod sealing device. Background Technology
[0002] During the production process, the carbonization furnace typically uses a hydraulic pusher to reciprocate and push the sintered semi-coke into the scraper conveyor through the feed inlet.
[0003] When the original equipment is in use, errors caused by installation or bending deformation of the push rod due to high temperature during use will accelerate the wear of the push rod sealing material, eventually damaging the outer surface of the push rod and destroying the seal. This will cause water, tar, and gas to leak during the reciprocating motion of the push rod, resulting in environmental pollution. Utility Model Content
[0004] The purpose of this utility model is to provide a sealing device for the push rod of a carbonization furnace, so as to solve the problem in the prior art where the existing equipment, due to installation errors or deformation during use, accelerates the wear of the sealing material, eventually damaging the outer surface of the push rod and thus destroying the seal, causing water and air leakage during the reciprocating motion of the push rod, resulting in environmental pollution.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a carbonization furnace push rod sealing device, including a push rod sleeve, the right end of which is provided with two sets of floating components, and the floating components are used to ensure that the sealing material is intact; the rightmost end of the middle part of the push rod sleeve is provided with a quick splicing component, and the quick splicing component is used to quickly splice the connection structure that restricts the connection with the outside world.
[0006] The floating assembly includes a floating flange, and two sets of flange limiting plates are provided on the outer side of the floating flange. The flange limiting plate on the left side is welded to the outer wall of the carbonization furnace. The floating assembly includes two sets of combined plates, and the combined plates are located at the end of the push rod sleeve. A floating sleeve is embedded in the inner side of the combined plates.
[0007] The quick-assembly assembly includes a movable joint, and the inner ring of the movable joint has a movable groove. The inner side of the movable joint is provided with a limiting shaft, and the middle of the limiting shaft is provided with a support spring. The outer sides of both ends of the support spring are provided with inclined limiting blocks, and the inclined limiting blocks are located inside the movable groove. Inclined guide blocks are movably provided at the top and bottom of the inner side of the movable joint.
[0008] Preferably, a sealing inner ring is provided on the inner side of the floating sleeve, and a piston push rod is movably provided on the inner side of the sealing inner ring. The push rod is fitted with a connecting hole at the top between the combination plate and the flange limiting plate.
[0009] Preferably, a sealing piston is installed on the outer side of the middle part of the piston rod, and a sealing plug, a Y-shaped sealing ring and a piston ring are embedded in the surface of the sealing piston from left to right, and guide strips are embedded in the outer sides of both ends of the sealing piston.
[0010] Preferably, the flange limiting plate and the outer ring of the combination plate are provided with through holes, and positioning bolts are embedded in the inner side of the through holes.
[0011] Preferably, an adjusting screw is embedded in the inner side of the inclined guide block, and a bearing screw head is provided at the end of the adjusting screw, with the bearing screw head located inside the top and bottom of the movable joint.
[0012] Preferably, movable plates are installed at both ends of the support spring, and the movable plates are located inside the inclined limiting block.
[0013] Compared with the prior art, the beneficial effects achieved by this utility model are:
[0014] First, this utility model, by installing a floating component, uses a flange limiting plate and a combination plate to restrict the inner floating flange and floating sleeve. The floating flange and floating sleeve have a certain movement gap inside the flange limiting plate and the combination plate. In this way, the original fixed cylinder seal is changed to a floating cylinder seal, and the sealing material is changed from the original packing to a composite seal of piston rings and fluororubber sealing rings. Furthermore, the service life of the sealing material is extended by using machine oil lubrication, so that the sealing material can be kept intact when the cylinder is in a state of push rod deformation or flexibility, thereby achieving a complete sealing effect.
[0015] Secondly, this utility model, by installing a quick-assembly component, addresses the issue that existing push structures typically employ movable joints and limiting shafts for better connection with external structures, thus achieving the splicing effect. However, these limiting shafts are inconvenient to disassemble. By setting a limiting shaft, an installation position can be provided for the inner structure, and the support spring can push the inclined limiting block outward. After outward, it can be embedded in the reserved movable groove. By using an adjusting screw, the inclined guide block can be driven outward and embedded in the movable groove. During rotation, the inclined limiting block can be pushed into the inner side of the limiting shaft. The quick-assembly component enables quick disassembly and installation. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the main structure of the present utility model;
[0017] Figure 2 This is a schematic diagram of the cross-section of the piston rod of this utility model;
[0018] Figure 3 This is a schematic diagram of the cross-section of the floating flange of this utility model;
[0019] Figure 4 This is a schematic diagram of the limiting axis section of this utility model.
[0020] The components are as follows: 1. Push rod sleeve; 101. Floating flange; 102. Connecting hole; 103. Combination plate; 104. Floating sleeve; 105. Sealing inner ring; 106. Piston push rod; 107. Sealing piston; 2. Flange limiting plate; 201. Through hole; 202. Positioning bolt; 3. Movable joint; 301. Movable groove; 302. Bearing screw head; 303. Adjusting screw; 304. Inclined guide block; 4. Limiting shaft; 401. Support spring; 402. Movable plate; 403. Inclined limiting block. Detailed Implementation
[0021] 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.
[0022] Please see Figure 1-4 The carbonization furnace push rod sealing device includes a push rod sleeve 1. Two sets of floating components are provided at the right end of the push rod sleeve 1. The floating components are used to ensure that the sealing material is intact. A quick splicing component is provided at the rightmost end of the middle part of the push rod sleeve 1. The quick splicing component is used to quickly splice the connection structure with the outside world.
[0023] The floating assembly includes a floating flange 101, and two sets of flange limiting plates 2 are provided on the outer side of the floating flange 101. The left flange limiting plate 2 is welded to the outer wall of the carbonization furnace. The floating assembly includes two sets of combination plates 103, and the combination plates 103 are located at the end of the push rod sleeve 1. A floating sleeve 104 is embedded in the inner side of the combination plates 103.
[0024] The quick-assembly assembly includes a movable joint 3, and the inner ring of the movable joint 3 is provided with a movable groove 301. A limit shaft 4 is provided on the inner side of the movable joint 3, and a support spring 401 is provided in the middle of the limit shaft 4. An inclined limit block 403 is provided on the outer side of both ends of the support spring 401, and the inclined limit block 403 is located inside the movable groove 301. An inclined guide block 304 is movably provided at the top and bottom of the inner side of the movable joint 3.
[0025] Through the above technical solution, the inner floating flange 101 and floating sleeve 104 can be restricted by the flange limiting plate 2 and the combination plate 103. The floating flange 101 and floating sleeve 104 have a certain movement gap inside the flange limiting plate 2 and the combination plate 103. In this way, the original fixed cylinder seal is changed to a floating cylinder seal, and the sealing material is changed from the original packing to a composite seal of piston rings and fluororubber sealing rings. The service life of the sealing material is extended by using machine oil lubrication, so that the sealing material can be kept intact when the cylinder is in a state of push rod deformation or flexural, so as to achieve a complete sealing effect.
[0026] Through the above technical solution, the installation position of the inner structure can be provided by setting the limiting shaft 4. The support spring 401 can push the inclined limiting block 403 outward. After outward, it can be embedded in the reserved movable groove 301. By using the adjusting screw 303, the inclined guide block 304 can be driven outward and embedded in the movable groove 301. During the rotation, the inclined limiting block 403 can be pushed into the inner side of the limiting shaft 4. Quick disassembly and installation can be achieved by using the quick splicing assembly.
[0027] Specifically, a sealing inner ring 105 is provided on the inner side of the floating sleeve 104, and a piston push rod 106 is movably provided on the inner side of the sealing inner ring 105. A connecting hole 102 is provided on the top of the push rod sealing sleeve 1 between the combination plate 103 and the flange limiting plate 2.
[0028] Through the above technical solution, the sealing inner ring 105 can fit tightly against the outer side of the piston push rod 106, thereby increasing the sealing performance, and the connection hole 102 is used to connect with the external hydraulic control device.
[0029] Specifically, a sealing piston 107 is installed on the outer side of the middle part of the piston push rod 106, and a sealing plug, a Y-shaped sealing ring and a piston ring are embedded on the surface of the sealing piston 107 from left to right. Guide strips are embedded on the outer sides of both ends of the sealing piston 107.
[0030] Through the above technical solution, the sealing piston 107 can move inside the push rod sleeve 1, and the sealing performance is further increased by embedding a sealing plug, a Y-shaped sealing ring and a piston ring.
[0031] Specifically, a through hole 201 is provided on the inner side of the outer ring of the flange limiting plate 2 and the combination plate 103, and a positioning bolt 202 is embedded in the inner side of the through hole 201.
[0032] Through the above technical solution, the through hole 201 is used to provide an installation position for the positioning bolt 202, and the inner device can be fixed to the carbonization furnace by using the positioning bolt 202.
[0033] Specifically, an adjusting screw 303 is embedded in the inner side of the inclined guide block 304, and a bearing screw head 302 is provided at the end of the adjusting screw 303, and the bearing screw head 302 is located inside the top and bottom of the movable joint 3.
[0034] Through the above technical solution, the adjusting screw 303, under the control of the bearing screw head 302, can drive the inclined guide block 304 to extend and embed into the inner side of the movable groove 301. The inclined guide block 304 has a square block structure and can be vertically adjusted.
[0035] Specifically, movable plates 402 are installed at both ends of the support spring 401, and the movable plates 402 are located inside the inclined limiting block 403.
[0036] Through the above technical solution, the movable plate 402 can control the outward extension of the inclined limiting block 403 under the push of the support spring 401. After the outward extension, it can be restricted to the inside of the movable joint 3. After being embedded, it can be restricted.
[0037] In use, first insert the push rod sleeve 1 and floating flange 101 into the inner side of the flange limiting plate 2, and then fix them with positioning bolts 202. Next, fix the floating sleeve 104 to the inner side of the combination plate 103 with positioning bolts 202. After splicing, set the external connector on the outside of the movable joint 3. Then, squeeze the inclined limiting block 403 into the inner side of the movable joint 3 and insert it into the inner side of the movable joint 3. After insertion, the support spring 401 will push the inclined limiting block 403 outward and embed it into the inner side of the movable groove 301, thereby achieving the limiting effect. When disassembly is required, use a tool to control the bearing screw head 302 to drive the adjusting screw 303 to rotate. The rotation will drive the inner side of the inclined guide block 304. By controlling the rotation of the limiting shaft 4, the inclined guide block 304 can push the inclined limiting block 403 into the inner side of the limiting shaft 4, and finally disassembly can be performed.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A carbonization furnace pusher sealing device, comprising a pusher sleeve (1), characterized in that: The right end of the push rod sleeve (1) is provided with two sets of floating components, and the floating components are used to ensure that the sealing material is intact. The rightmost end of the middle part of the push rod sleeve (1) is provided with a quick splicing component, and the quick splicing component is used to quickly splice the connection structure with the outside world. The floating assembly includes a floating flange (101), and two sets of flange limiting discs (2) are provided on the outside of the floating flange (101). The flange limiting disc (2) on the left side is welded to the outer wall of the carbonization furnace. The floating assembly includes two sets of combination discs (103), and the combination discs (103) are located at the end of the push rod sleeve (1). A floating sleeve (104) is embedded in the inner side of the combination discs (103). The quick-assembly assembly includes a movable joint (3), and the inner ring of the movable joint (3) is provided with a movable groove (301). The inner side of the movable joint (3) is provided with a limiting shaft (4), and the middle part of the limiting shaft (4) is provided with a support spring (401). The outer sides of both ends of the support spring (401) are provided with inclined limiting blocks (403), and the inclined limiting blocks (403) are located inside the movable groove (301). The top and bottom of the inner side of the movable joint (3) are movably provided with inclined guide blocks (304).
2. The carbonization furnace pusher sealing device according to claim 1, characterized in that: The inner side of the floating sleeve (104) is provided with a sealing inner ring (105), and a piston push rod (106) is movably provided on the inner side of the sealing inner ring (105). The push rod sealing sleeve (1) has a connecting hole (102) at the top between the combination plate (103) and the flange limiting plate (2).
3. The carbonization furnace pusher sealing device according to claim 2, characterized in that: A sealing piston (107) is installed on the outer side of the middle part of the piston push rod (106), and a sealing plug, a Y-shaped sealing ring and a piston ring are embedded on the surface of the sealing piston (107) from left to right. Guide strips are embedded on the outer sides of both ends of the sealing piston (107).
4. The carbonization furnace pusher sealing device according to claim 1, characterized in that: The flange limiting plate (2) and the combination plate (103) have through holes (201) on the inner side of their outer rings, and positioning bolts (202) are embedded in the inner side of the through holes (201).
5. The carbonization furnace pusher sealing device according to claim 1, characterized in that: An adjusting screw (303) is embedded in the inner side of the inclined guide block (304), and a bearing screw head (302) is provided at the end of the adjusting screw (303), and the bearing screw head (302) is located inside the top and bottom of the movable joint (3).
6. The carbonization furnace pusher sealing device according to claim 1, characterized in that: The support spring (401) has movable plates (402) installed at both ends, and the movable plates (402) are located inside the inclined limiting block (403).