Double-flue high-efficiency dust removal guide sleeve for top-loading coal car
By employing a dual-flue synchronous suction system and a sealed design for the inner and outer guide sleeves, the problems of smoke, fire, and coal spraying in the dust removal guide sleeves of top-loading coal cars have been solved, improving dust removal efficiency and safety while reducing labor intensity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN HUARUI HEAVY IND COKE OVEN VEHICLE EQUIP
- Filing Date
- 2025-04-29
- Publication Date
- 2026-07-14
AI Technical Summary
The existing dust removal guide sleeves of top-loading coal cars are prone to smoke, fire, and coal spraying, posing significant safety hazards, low dust removal efficiency, high labor intensity, and poor sealing, which prevents timely extraction of smoke and dust.
It adopts a dual-flue synchronous suction design, with an inner guide sleeve spherical seal and an outer guide sleeve flexible seal, combined with hydraulic system adjustment, to achieve synchronous descent and sealing of the movable guide sleeve, thereby enhancing the dust removal effect.
It effectively solved the problems of smoke, fire, and coal spraying, improved dust removal efficiency, reduced safety hazards and labor intensity, and improved sealing and dust removal effect.
Smart Images
Figure CN224494078U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dust removal equipment technology, and in particular to a high-efficiency dust removal guide sleeve with dual flues for top-loading coal cars. Background Technology
[0002] The dust-collecting coal charging car operates on the top of the top-loading coke oven. Its function is to collect coal from the coal tower and load it into the carbonization chamber, generating a large amount of raw coal gas and soot. The guide sleeve is the core component of the dust-collecting coal charging car, which connects the coal hopper and the carbonization chamber and is responsible for guiding the raw coal gas and soot to the ground dust collection station for collection and treatment.
[0003] The existing technologies, "a combined coal-feeding car sealing guide sleeve" and "a split sealing guide sleeve device for coal-feeding cars," exhibit smoke, fire, and coal spraying phenomena during actual use, posing safety hazards, low dust removal efficiency, and high labor intensity. Therefore, the existing technologies mainly have the following disadvantages:
[0004] 1) The dust collector guide sleeve has only one flue connected to the main dust collection pipeline. When the smoke and dust are too large, it will cause smoke and fire if it cannot be sucked in time.
[0005] 2) Excessive gap between the coal inlet of the inner movable guide sleeve and the coal charging hole is the main cause of coal spraying.
[0006] 3) There is no seal between the outer movable guide sleeve and the furnace top, and the gap is too large, which will reduce the suction. Utility Model Content
[0007] To address the aforementioned technical problems, a high-efficiency dust removal guide sleeve with dual flues for top-loading coal cars is provided. This invention primarily employs new technologies such as synchronous dual-flue suction, spherical sealing of the inner guide sleeve, and flexible sealing to effectively solve problems such as smoke, fire, and coal spraying during coal loading, eliminating safety hazards, significantly improving dust removal efficiency, and reducing the labor intensity of operators. The technical means employed in this invention are as follows:
[0008] A high-efficiency dust removal guide sleeve with dual flues for top-loading coal cars includes: a hydraulic cylinder, a pull rod, a fixed hinge seat, an adjusting screw, a fixed guide sleeve, a movable inner guide sleeve, a movable outer guide sleeve, a first flue, a second flue, and a main dust collection pipe. The fixed hinge seat, the fixed guide sleeve, and the main dust collection pipe are all fixedly connected to the platform of the steel structure of the top-loading coal car.
[0009] The tail of the hydraulic cylinder is hinged to the lower part of the steel structure platform, the head of the piston rod of the hydraulic cylinder is hinged to the tail end of the pull rod, the middle part of the pull rod is hinged to the lower part of the fixed hinge seat, the front end of the pull rod is hinged to one end of the adjusting screw, and the other end of the adjusting screw is hinged to the movable outer guide sleeve.
[0010] The fixed guide sleeve is provided with a first suction port, which is fixedly connected to one end of the first flue via a flange. The main dust collection pipe adopts a three-way design and is connected to the other end of the first flue, one end of the second flue, and the ground dust removal station respectively. The movable outer guide sleeve is provided with a second suction port, which is used to be fixedly connected to the other end of the second flue away from the main dust collection pipe.
[0011] Furthermore, the movable inner guide sleeve includes a movable upper inner guide sleeve, a movable lower inner guide sleeve, and a bracket. The movable upper inner guide sleeve and the movable lower inner guide sleeve are fixedly connected by a flange. The bracket is fixedly connected to the lower outer side of the movable lower inner guide sleeve. The movable outer guide sleeve has an internal support plate inside, and the internal support plate is connected to the bracket.
[0012] Furthermore, a spherical sealing body is fixedly connected to the bottom end of the movable inner lower guide sleeve, and the spherical sealing body fits against the furnace hole during operation.
[0013] Furthermore, the movable outer guide sleeve includes a movable upper outer guide sleeve and a movable lower outer guide sleeve, which are fixedly connected by a flange. One end of the second suction port is fixedly connected to the movable upper outer guide sleeve and the movable lower outer guide sleeve, and communicates with the interior of the movable upper outer guide sleeve and the movable lower outer guide sleeve.
[0014] Furthermore, a flexible sealing ring is fixedly connected to the bottom end of the movable lower guide sleeve, and the flexible sealing ring is in contact with the furnace top during operation.
[0015] Furthermore, a regulating valve is installed inside the No. 1 flue.
[0016] Furthermore, a second regulating valve is installed inside the second flue.
[0017] Compared with the prior art, the present invention has the following advantages:
[0018] 1. The high-efficiency dust removal guide sleeve for top-loading coal cars with dual flues provides high dust removal efficiency through simultaneous suction in both channels.
[0019] 2. The high-efficiency dust removal guide sleeve for top-loading coal cars with dual flues provided by this utility model has internal regulating valves in flues No. 1 and No. 2, which can balance the suction of the two flues.
[0020] 3. The high-efficiency dust removal guide sleeve with dual flues for top-loading coal cars provided by this utility model features a flexible seal on the movable outer guide sleeve, which reduces the gap and lowers the smoke emission rate and coal injection rate.
[0021] 4. The high-efficiency dust removal guide sleeve with double flue provided by this utility model for top-loading coal cars has a movable inner guide sleeve with a spherical seal, which reduces the gap and lowers the smoke emission rate and coal injection rate.
[0022] 5. The high-efficiency dust removal guide sleeve with double flue provided by this utility model for top-loading coal cars has an adjustable screw to adjust the height of the movable outer guide sleeve to adapt to the unevenness deviation of the furnace top.
[0023] Based on the above reasons, this utility model can be widely promoted in the fields of metallurgy and coking. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is an initial position diagram of a high-efficiency dust removal guide sleeve with dual flues for top-loading coal cars, as described in a specific embodiment of this utility model.
[0026] Figure 2 This is a schematic diagram of the movable inner guide sleeve structure in a specific embodiment of this utility model.
[0027] Figure 3 This is a schematic diagram of the movable outer guide sleeve structure in a specific embodiment of this utility model.
[0028] Figure 4 This is a working position diagram of a high-efficiency dust removal guide sleeve with dual flues for top-loading coal cars, as described in a specific embodiment of this utility model.
[0029] In the diagram: 1. Steel structure; 2. Hydraulic cylinder; 3. Tie rod; 4. Fixed hinge seat; 5. Adjusting screw; 6. Fixed guide sleeve; 6.1. No. 1 suction port; 7. Movable inner guide sleeve; 7.1. Movable upper inner guide sleeve; 7.2. Movable lower inner guide sleeve; 7.3. Bracket; 7.4. Spherical seal body; 8. Movable outer guide sleeve; 8.1. Movable upper outer guide sleeve; 8.2. Movable lower outer guide sleeve; 8.3. Flexible sealing ring; 8.4. Internal support plate; 8.5. No. 2 suction port; 9. No. 1 flue; 10. No. 1 regulating valve; 11. No. 2 flue; 12. No. 2 regulating valve; 13. Main dust collection pipe; 14. Furnace hole. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0031] This invention provides a high-efficiency dust removal guide sleeve with dual flues for top-loading coal cars, applied to top-loading coke oven coal charging cars, used to guide coal charging dust to a ground dust removal station for treatment. This invention aims to solve the problems of smoke, fire, and coal spraying during top-loading coal cars in most production sites, which pose safety hazards, have low dust removal efficiency, and result in high labor intensity.
[0032] like Figure 1 As shown, this utility model discloses a high-efficiency dust removal guide sleeve for a top-loading coal car with dual flues, comprising a steel structure 1, a hydraulic cylinder 2, a pull rod 3, a fixed hinge seat 4, an adjusting screw 5, a fixed guide sleeve 6, a movable inner guide sleeve 7, a movable outer guide sleeve 8, a first flue 9, a first regulating valve 10, a second flue 11, a second regulating valve 12, and a main dust collection pipe 13. The steel structure 1 forms the frame of the top-loading coal car. The fixed guide sleeve 6, the main dust collection pipe 13, and the fixed hinge seat 4 are fixed to the platform below the steel structure 1 via other existing related structures, maintaining relative stillness with the steel structure 1. The tail end (located at the top) of the hydraulic cylinder 2 is hinged to the platform below the steel structure 1. The piston rod head (located at the bottom) of the hydraulic cylinder 2 is hinged to the tail end of the pull rod 3. The middle part of the pull rod 3 is hinged to the bottom of the fixed hinge seat 4. The front end of the pull rod 3 is hinged to one end (the top end in the figure) of the adjusting screw 5, and the other end (the bottom end in the figure) of the adjusting screw 5 is hinged to the other end. The movable outer guide sleeve 8 is hinged to the movable inner guide sleeve 7. The adjusting screw 5 can adjust the length and thus the height of the movable outer guide sleeve 8. The movable outer guide sleeve 8 can support the movable inner guide sleeve 7 to rise and fall together through the internal support plate 8.4. The fixed guide sleeve 6 is equipped with a first suction port 6.1, which is fixedly connected to one end flange of the first flue 9. The first regulating valve 10 is set inside the first flue 9 and can regulate the flow rate. The second regulating valve 12 is set inside the second flue 11 and can also regulate the flow rate. Flow rate regulation is mainly to balance the suction of the two flues. The main dust collection pipe 13 adopts a three-way design and is connected to the other end of the first flue 9, one end of the second flue 11, and the ground dust removal station. Through the negative pressure of the ground dust removal station, the first flue 9 and the second flue 11 form a suction force, thereby sucking up the coal loading dust.
[0033] like Figure 2 As shown, the movable inner guide sleeve 7 includes a movable upper inner guide sleeve 7.1, a movable lower inner guide sleeve 7.2, a bracket 7.3, and a spherical sealing body 7.4. The movable upper inner guide sleeve 7.1 and the movable lower inner guide sleeve 7.2 are connected by a flange, which facilitates installation and replacement. The bracket 7.3 is fixedly connected to the outside of the movable lower inner guide sleeve 7.2 and can be supported on the inner support plate 8.4 of the movable outer guide sleeve 8 for simultaneous lifting and lowering. The spherical sealing body 7.4 is fixed at the bottom of the movable lower inner guide sleeve 7.2 and fits against the furnace hole 14 during operation to reduce gaps and lower smoke rate and coal injection rate.
[0034] like Figure 3As shown, the movable outer guide sleeve 8 includes a movable upper outer guide sleeve 8.1, a movable lower outer guide sleeve 8.2, a flexible sealing ring 8.3, an internal support plate 8.4, and a second suction port 8.5. The movable upper outer guide sleeve 8.1 and the movable lower outer guide sleeve 8.2 are connected by flanges, facilitating installation and replacement. The flexible sealing ring 8.3 (soft sealing ring) is fixed to the bottom of the movable lower outer guide sleeve 8.2, fitting snugly against the furnace top during operation to reduce gaps and decrease smoke and coal injection rates. The internal support plate 8.4 is located inside the movable lower outer guide sleeve 8.2. One end of the second suction port 8.5 is fixedly connected to the movable upper outer guide sleeve 8.1 and the movable lower outer guide sleeve 8.2, and communicates with their interiors; the other end of the second suction port 8.5 is fixedly connected to the other end of the second flue 11 away from the main dust collection pipe 13.
[0035] The specific operation method of the high-efficiency dust removal guide sleeve with dual flues for top-loading coal cars according to this utility model is as follows:
[0036] like Figure 4 As shown, when the coal loading car moves to the coal-to-chemicals chamber, the movable outer guide sleeve 8 is concentric with the furnace hole 14. The high-efficiency dust removal guide sleeve with dual flues for top-loading coal cars of this invention begins operation. The piston rod of the hydraulic cylinder 2 retracts, driving the pull rod 3 to rotate around the fixed hinge seat 4. The other end drives the adjusting screw 5 to descend, thereby causing the movable outer guide sleeve 8 to fall. Simultaneously, the movable inner guide sleeve 7 falls along with the movable outer guide sleeve 8. When the hydraulic cylinder 2 receives a signal to stop, the spherical sealing body 7.4 of the movable inner guide sleeve 7 fits into the furnace hole 14, and the flexible sealing ring 8.3 of the movable outer guide sleeve 8 fits into the furnace top, both reducing gaps and lowering the smoke emission rate and coal injection rate. The second suction port 8.5 connects to the second flue 11. As the ground station fan starts, a negative pressure is formed inside the main dust collection pipe 13, drawing in dust through the first flue 9 and the second flue 11. At this time, the high-efficiency dust removal guide sleeve with dual flues for top-loading coal cars of this invention is in working condition until the operation is completed.
[0037] Preferably, the dust removal efficiency is high due to the simultaneous suction through dual channels, namely flue 9 (number one) and flue 11 (number two). Both flue 9 and flue 11 are equipped with regulating valves to balance the suction power of the two flues.
[0038] Preferably, the movable outer guide sleeve 8 is a flexible seal, which reduces the gap and lowers the smoke emission rate and coal injection rate.
[0039] Preferably, the movable inner guide sleeve 7 has a spherical seal to reduce the gap and decrease the smoke emission rate and coal injection rate.
[0040] Preferably, the height of the movable outer guide sleeve 8 is adjusted by adjusting the screw 5 to adapt to the unevenness deviation of the furnace top.
[0041] This invention can be applied to the renovation project of a 6-meter dust removal coal loading vehicle, as well as to new projects or existing market renovation projects.
[0042] This utility model discloses a high-efficiency dust removal guide sleeve with dual flues for top-loading coal cars. It adopts new technologies such as synchronous suction from dual flues, spherical sealing of the inner guide sleeve, and flexible sealing. It can effectively solve problems such as smoke, fire, and coal spraying that occur during coal loading, eliminate safety hazards, greatly improve dust removal efficiency, reduce the labor intensity of operators, and greatly enhance the market competitiveness of the company's products.
[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A high-efficiency dust removal guide sleeve with dual flues for top-loading coal cars, characterized in that, include: Hydraulic cylinder (2), pull rod (3), fixed hinge seat (4), adjusting screw (5), fixed guide sleeve (6), movable inner guide sleeve (7), movable outer guide sleeve (8), No. 1 flue (9), No. 2 flue (11) and main dust collection pipe (13), the fixed hinge seat (4), fixed guide sleeve (6) and main dust collection pipe (13) are all fixedly connected to the platform below the steel structure (1) of the top coal loading car; The tail of the hydraulic cylinder (2) is hinged to the platform below the steel structure (1), the piston rod head of the hydraulic cylinder (2) is hinged to the tail end of the pull rod (3), the middle part of the pull rod (3) is hinged to the bottom of the fixed hinge seat (4), the front end of the pull rod (3) is hinged to one end of the adjusting screw (5), and the other end of the adjusting screw (5) is hinged to the movable outer guide sleeve (8). The fixed guide sleeve (6) is provided with a first suction port (6.1), which is fixedly connected to one end of the first flue (9) through a flange. The main dust collection pipe (13) adopts a three-way design and is connected to the other end of the first flue (9), one end of the second flue (11), and the ground dust removal station respectively. The movable outer guide sleeve (8) is provided with a second suction port (8.5), which is used to be fixedly connected to the other end of the second flue (11) away from the main dust collection pipe (13). The movable inner guide sleeve (7) includes a movable inner lower guide sleeve (7.2), and a spherical sealing body (7.4) is fixedly connected to the bottom end of the movable inner lower guide sleeve (7.2). The spherical sealing body (7.4) fits against the furnace hole (14) during operation. The movable outer guide sleeve (8) includes a movable outer lower guide sleeve (8.2), and a flexible sealing ring (8.3) is fixedly connected to the bottom end of the movable outer lower guide sleeve (8.2). The flexible sealing ring (8.3) fits against the furnace top during operation.
2. The high-efficiency dust removal guide sleeve for top-loading coal cars with dual flues as described in claim 1, characterized in that, The movable inner guide sleeve (7) also includes a movable upper inner guide sleeve (7.1) and a bracket (7.3). The movable upper inner guide sleeve (7.1) and the movable lower inner guide sleeve (7.2) are fixedly connected by a flange. The bracket (7.3) is fixedly connected to the lower outer side of the movable lower inner guide sleeve (7.2). The movable outer guide sleeve (8) is provided with an inner support plate (8.4), which is connected to the bracket (7.3).
3. The high-efficiency dust removal guide sleeve for top-loading coal cars with dual flues according to claim 1, characterized in that, The movable outer guide sleeve (8) also includes a movable upper outer guide sleeve (8.1). The movable upper outer guide sleeve (8.1) and the movable lower outer guide sleeve (8.2) are fixedly connected by a flange. One end of the second suction port (8.5) is fixedly connected to the movable upper outer guide sleeve (8.1) and the movable lower outer guide sleeve (8.2), and communicates with the interior of the movable upper outer guide sleeve (8.1) and the movable lower outer guide sleeve (8.2).
4. The high-efficiency dust removal guide sleeve for top-loading coal cars with dual flues as described in claim 1, characterized in that, The No. 1 flue (9) is equipped with a No. 1 regulating valve (10).
5. The high-efficiency dust removal guide sleeve for top-loading coal cars with dual flues according to claim 1, characterized in that, The No. 2 flue (11) is equipped with a No. 2 regulating valve (12).