Continuous machining heat treatment device for mining chain

Abstract

The utility model relates to a mining chain continuous processing heat treatment device which comprises a heating furnace and a quenching bath which are alternately arranged along a chain advancing path, a smoke collecting barrel is arranged between the heating furnace and the quenching bath, the smoke collecting barrel comprises an outer barrel body, one end of the outer barrel body is provided with an inlet, and the other end of the outer barrel body is provided with an opening; the opening of the outer cylinder is immersed in quenching liquid of the quenching bath; the inner cylinder body is coaxially arranged in the outer cylinder body and divides the inner space of the outer cylinder body into an inner channel and an outer channel, and a communicating hole for communicating the inner channel with the outer channel is formed in the inner cylinder body in the radial direction; and one end of the negative pressure pipeline is communicated with the outer channel. According to the utility model, the movement track of the smoke is limited through the arrangement of the inner channel, so that the smoke rises according to a preset path, and the smoke can be sucked into the outer channel in the rising process and is intensively sucked out through the negative pressure pipeline by utilizing the formation of the negative pressure space in the outer channel, so that the smoke is prevented from escaping.

Description

TECHNICAL FIELD

[0001] The utility model belongs to chain processing technical field, especially relate to the continuous processing heat treatment device of mining chain. BACKGROUND

[0002] Mining chain as the key component of mining equipment, bears important traction and transmission role in scraper conveyor, hoist and other equipment. Its quality advantage and shortcoming directly influence the safety and efficiency of mine production. In order to meet the demand of severe working environment, mining chain needs to have high hardness, high strength, good wear resistance and fatigue resistance, and continuous processing heat treatment is the key process to improve these performances. In the current mining production, with the continuous expansion of mining scale and the improvement of mechanization degree, the demand for mining chain is continuously growing, and higher requirements for its quality are put forward, which promotes the continuous development and improvement of heat treatment process.

[0003] In the continuous processing heat treatment of mining chain, smoke is generated in multiple links. When high-temperature chain enters quenching liquid, the quenching liquid is rapidly heated and evaporated and decomposed. If oil-based quenching liquid is used, the oil will vaporize, crack and even polymerize at high temperature, generating a large amount of smoke-like substances such as propylene aldehyde, benzopyrene and monocyclic aromatic hydrocarbons. Even if water-soluble quenching liquid is used, when water vaporizes into water vapor at high temperature, it may carry additives in the quenching liquid or impurities on the surface of the chain to form smoke. In addition, the oil stains and impurities attached to the surface of the chain will burn or evaporate during the heating process, which will also increase the amount of smoke generated. For example, in the traditional quenching process, the instant the hot chain contacts the quenching liquid, it will cause a violent smoke eruption. This process occurs frequently in the entire heat treatment cycle, which will cause harmful substances in the working environment, and the particulate matter attached to the surface of the equipment will shorten its service life. CONTENT OF THE UTILITY MODEL

[0004] The utility model provides continuous processing heat treatment device of mining chain in view of prior art's problem, and the specific technical scheme is as follows:

[0005] The continuous processing heat treatment device of mining chain comprises a heating furnace and a quenching pool arranged alternately along the chain running path, and a smoke collecting cylinder is arranged between the heating furnace and the quenching pool.

[0006] The outer cylinder has an inlet at one end and an opening at the other end, and the opening of the outer cylinder is immersed in the quenching liquid of the quenching pool.

[0007] The inner cylinder is coaxially arranged in the outer cylinder and separates the inner space of the outer cylinder to form an inner channel and an outer channel, and a communication hole is radially arranged on the inner cylinder to communicate the inner channel and the outer channel.

[0008] A negative pressure pipeline is communicated with the outer channel at one end and externally connected with a negative pressure source at the other end to form a negative pressure space in the outer channel.

[0009] As a further technical scheme of the utility model, the communication holes are arranged in several groups and are evenly arranged along the circumferential direction and axial direction of the inner channel.

[0010] As a further technical scheme of the utility model, the inner cylinder is provided with a plurality of spiral flow guide plates along the axial direction.

[0011] As a further technical scheme of the utility model, the communication holes are arranged in a decreasing order of throttling area from inside to outside.

[0012] As a further technical scheme of the utility model, the opening of the outer cylinder is screwed with a sealing ring, and in the installed state, the sealing ring is ring-sealed between the outer cylinder and the inner cylinder.

[0013] As a further technical scheme of the utility model, the outer channel is provided with a flow guide ring, which is abutted and arranged in the outer cylinder top wall and the sealing ring and cooperates with the negative pressure pipeline to form a long and narrow flow guide channel.

[0014] As a further technical scheme of the utility model, the flow guide ring is provided with a flow guide groove corresponding to the communication hole.

[0015] The utility model has the following beneficial effects:

[0016] In the application, the movement track of the smoke is limited by the arrangement of the inner channel, so that the smoke rises along the preset path, and the negative pressure space in the outer channel is formed, so that the smoke rising process can be inhaled into the outer channel and concentrated and sucked out for treatment through the negative pressure pipeline, thereby avoiding smoke dispersion. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The overall structure schematic diagram of the mining chain continuous processing heat treatment device is shown;

[0018] Figure 2 The overall structure schematic diagram of the smoke collecting cylinder is shown;

[0019] Figure 3 The structure schematic diagram of the outer cylinder, the inner cylinder and the negative pressure pipeline is shown;

[0020] Figure 4 The structure schematic diagram of the inner cylinder is shown;

[0021] Figure 5 The structure schematic diagram of the sealing ring is shown;

[0022] Figure 6 The structure schematic diagram of the flow guide ring is shown;

[0023] Figure 7 A structural diagram of the flow guide groove is shown.

[0024] Legend:

[0025] 100, chain; 200, heating furnace; 300, quenching tank; 400, smoke collecting cylinder; 410, outer cylinder; 411, inlet; 412, opening; 413, inner channel; 414, outer channel; 420, inner cylinder; 421, communication hole; 422, spiral flow guide plate; 430, negative pressure pipeline; 440, sealing ring; 450, flow guide ring; 451, flow guide channel; 452, flow guide groove. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the present application will be described clearly and completely below in conjunction with embodiments.

[0027] Figure 1 A whole structural diagram of the mining chain continuous processing heat treatment device is shown. Figure 1 In this mining chain continuous processing heat treatment device, heating furnaces 200 and quenching tanks 300 are alternately arranged along the path of the chain 100; the chain 100 alternately passes through the heating furnaces 200 and the quenching tanks 300 to realize quenching, tempering and other forging processes; in actual work, the number of the heating furnaces 200 and the quenching tanks 300 is not limited and can be set as needed; and the quenching liquid in the quenching tank 300 is also not limited; all of the above are prior art.

[0028] Continuing to refer to Figure 1 A smoke collecting cylinder 400 is arranged between the heating furnaces 200 and the quenching tanks 300, and the smoke collecting cylinder 400 is used to collect the smoke generated after the chain 100 is immersed in the quenching tank 300.

[0029] Figure 2 A whole structural diagram of the smoke collecting cylinder 400 is shown. Figure 3 A structural diagram of the outer cylinder 410, the inner cylinder 420 and the negative pressure pipeline 430 is shown. Figure 2 And Figure 3 In this embodiment, the smoke collecting cylinder 400 includes an outer cylinder 410, an inner cylinder 420 and a negative pressure pipeline 430; the outer cylinder 410 has a whole cylindrical structure, one end of the outer cylinder 410 has an inlet 411, and the other end has an opening 412; the inlet 411 and the opening 412 are oppositely arranged, and the chain 100 passes through the inlet 411 and the opening 412 in sequence; the opening 412 of the outer cylinder 410 is immersed in the quenching liquid of the quenching tank 300, that is, the opening 412 is immersed in the liquid, so that the smoke generated by the chain 100 and the quenching liquid can be collected in the outer cylinder 410, avoiding the smoke from escaping to the surroundings.

[0030] In order to avoid smoke from escaping from the gap between the top of the outer cylinder 410 and the chain 100, it is further improved; Figure 4 The structure diagram in the inner cylinder 420 is shown; the inner cylinder 420 corresponding to the inlet 411 is coaxially arranged in the outer cylinder 410, and the inner cylinder 420 divides the inner space of the outer cylinder 410 into an inner passage 413 and an outer passage 414; the cross-sectional shape of the inner cylinder 420 matches the inlet 411, forming the inner passage 413 for the chain 100 to pass through; the inner cylinder 420 is radially provided with a communication hole 421 communicating the inner passage 413 and the outer passage 414, and the outer passage 414 is communicated with a negative pressure pipeline 430, and the negative pressure pipeline 430 is connected with a negative pressure source to form a negative pressure space in the outer passage 414; when the smoke rises upward through the inner passage 413, it will be sucked into the outer passage 414 through the communication hole 421 and be concentrated and discharged for treatment through the negative pressure pipeline 430; that is, the movement track of the smoke is limited by the arrangement of the inner passage 413, so that the smoke rises along the preset path, and the formation of the negative pressure space in the outer passage 414 can suck and concentrate the smoke during the rising process, avoiding the escape of the smoke; the communication hole 421 is provided with several groups, which are uniformly arranged along the circumference and the axis of the inner passage 413; that is, a plurality of communication holes 421 are uniformly arranged along the circumference of the inner passage 413 and form a group, and a plurality of groups are arranged along the axis of the inner passage 413 to fully adsorb the smoke on the path; a plurality of spiral guide plates 422 are arranged along the axial path in the inner cylinder 420; the arrangement of the spiral guide plates 422 can guide the movement track of the rising smoke, so that the smoke moves along the track of the spiral guide plates 422, prolongs the rising path of the smoke, increases the time of the smoke staying in the inner cylinder 420, and reduces the possibility of smoke escaping; the communication hole 421 has a decreasing area from inside to outside; the design of the decreasing area of the communication hole 421 can increase the flow speed of the smoke, which is beneficial to the collection efficiency.

[0031] Figure 5 The structure diagram of the sealing ring 440 is shown; Figure 5 The opening 412 of the outer cylinder 410 is screwed with the sealing ring 440, and in the installed state, the sealing ring 440 is ring-sealed between the outer cylinder 410 and the inner cylinder 420; through the arrangement of the sealing ring 440, the passage between the liquid and the outer passage 414 can be isolated, avoiding the gas entering the outer passage 414 and then entering the liquid again.

[0032] Figure 6 The structure diagram of the flow guide ring 450 is shown; Figure 7 The structure diagram of the flow guide groove 452 is shown; Figure 6 and Figure 7In the middle, the outer passage 414 is provided with a flow guide ring 450, the flow guide ring 450 is abutted against the top wall of the outer cylinder body 410 and the sealing ring 440 and cooperates with the negative pressure pipeline 430 to form a long and narrow flow guide passage 451; the sealing ring 440 can be disassembled to take out and clean the flow guide ring 450, which is beneficial to the replacement of the parts, and the formation of the flow guide passage 451 reduces the throttling area of the smoke flow passage, greatly improves the gas flow speed, so that the smoke can be rapidly collected; the flow guide ring 450 is provided with a flow guide groove 452 corresponding to the communication hole 421; the smoke sprayed from the communication hole 421 can impact on the surface of the flow guide ring 450 to form gas-liquid separation, and the liquid can flow downward along the flow guide groove 452 and collect, and the liquid can be collected after the sealing ring 440 is removed.

[0033] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit them.

Claims

1. A continuous heat treatment device for mining chain, comprising heating furnaces (200) and quenching pools (300) arranged alternately along the path of the chain (100), characterized in that, The heating furnace (200) and the quenching tank (300) are provided with a smoke collecting cylinder (400), and the smoke collecting cylinder (400) comprises: an outer cylinder (410), one end of the outer cylinder (410) is provided with an inlet (411), and the other end is provided with an opening (412), and the opening (412) of the outer cylinder (410) is immersed in the quenching liquid of the quenching tank (300); an inner cylinder (420), the inner cylinder (420) is coaxially arranged in the outer cylinder (410) and separates the inner space of the outer cylinder (410) to form an inner channel (413) and an outer channel (414), and the inner cylinder (420) is radially provided with a communication hole (421) communicating the inner channel (413) and the outer channel (414); a negative pressure pipeline (430), one end of the negative pressure pipeline (430) communicates with the outer channel (414), and the other end is connected with a negative pressure source to form a negative pressure space in the outer channel (414).

2. The chain heat treatment apparatus for continuous processing of mine chains according to claim 1, characterized in that: The communication holes (421) are arranged in several groups and are uniformly arranged along the circumferential direction and the axial direction of the inner channel (413).

3. The chain heat treatment apparatus for continuous processing of mine chains according to claim 2, characterized in that: A plurality of spiral guide plates (422) are arranged in the inner cylinder (420) along the axial direction.

4. The chain heat treatment apparatus for continuous processing of mine chains according to claim 3, characterized in that: The communication holes (421) are arranged in several groups and are uniformly arranged along the circumferential direction and the axial direction of the inner channel (413).

5. The chain heat treatment apparatus for continuous processing of mine chains according to claim 3, characterized in that: The opening (412) of the outer cylinder (410) is screwed with a sealing ring (440), and in the installed state, the sealing ring (440) is ring-sealed between the outer cylinder (410) and the inner cylinder (420).

6. The chain heat treatment apparatus for continuous processing of mine chains according to claim 3, characterized in that: The outer channel (414) is provided with a flow guide ring (450), the flow guide ring (450) is arranged in the top wall of the outer cylinder (410) and the sealing ring (440) and cooperates with the negative pressure pipeline (430) to form a narrow flow guide channel (451).

7. The chain-in-the-mine continuous process heat treatment apparatus according to claim 6, characterized by: The flow guide ring (450) is provided with a flow guide groove (452) corresponding to the communication hole (421).

Images