Novel kiln replacement chamber

Abstract

The utility model discloses a novel kiln replacement chamber which comprises a replacement bin, an air outlet pipeline, an air inlet pipeline and a filtering mechanism. A plurality of lifting devices are arranged at the top of the replacement bin, flashboards are arranged at the positions, corresponding to the lifting devices, in the replacement bin, a replacement chamber is formed between the adjacent flashboards and the replacement bin, and one end of the air outlet pipeline and one end of the air inlet pipeline are both communicated with the replacement chamber; and a vacuum pump is mounted at the other end of the air outlet pipeline through the filtering mechanism. Gas in the replacement chamber can be pumped away through the arranged vacuum pump through the gas outlet pipeline, and then protective gas is injected into the replacement chamber through the gas inlet pipeline, so that the replacement chamber is rapidly filled with the protective gas, the operation is simple, and the efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of kiln replacement chambers, in particular to a novel kiln replacement chamber. Background Art

[0002] The preparation of the positive and negative electrode materials of lithium batteries requires high-temperature sintering and curing. During sintering, a full-atmosphere roller hearth kiln is generally used. Compared with an ordinary atmosphere roller hearth kiln, the full-atmosphere roller hearth kiln not only performs a full-sealing treatment on the entire roller hearth kiln, but also a replacement chamber is added at the furnace head and furnace tail. When materials enter and exit the roller hearth kiln, gas replacement needs to be carried out through the replacement chamber to ensure that the materials entering and exiting do not affect the furnace atmosphere.

[0003] For example, the patent with the patent number CN206310912U includes a replacement chamber, an intake pipe communicated with the inner cavity of the replacement chamber, and an exhaust pipe communicated with the inner cavity of the replacement chamber. The replacement chamber is provided with an inlet gate and an outlet gate. One or more expandable and contractible liquid bags are arranged in the inner cavity of the replacement chamber. Each liquid bag is connected with an inlet and outlet liquid pipe extending outside the replacement chamber. The intake pipe, the exhaust pipe and each inlet and outlet liquid pipe are all provided with switch components for controlling opening and closing.

[0004] The above device uses the expansion and contraction of the liquid bag to complete the replacement of most of the gas in the inner cavity of the replacement chamber. However, the temperature of the replacement chamber is relatively high. During replacement, the temperature of the replacement chamber needs to be reduced first to avoid damage to the liquid bag due to contact with the inner wall of the replacement chamber and being heated. The operation is rather troublesome. Summary of the Utility Model

[0005] Aiming at the above defects, the purpose of the utility model is to provide a novel kiln replacement chamber to solve the problem that the existing device needs to reduce the temperature of the replacement chamber first when using a liquid bag to carry out gas replacement, resulting in troublesome operation.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A novel kiln replacement chamber includes a replacement bin, an exhaust gas pipeline, an intake gas pipeline and a filtering mechanism;

[0008] A plurality of lifting devices are arranged at the top of the replacement bin. At the position corresponding to the lifting devices inside the replacement bin, there are gate plates. A replacement chamber is formed between the adjacent gate plates and the replacement bin. One ends of the exhaust gas pipeline and the intake gas pipeline are both communicated with the replacement chamber;

[0009] The other end of the exhaust gas pipeline is installed with a vacuum pump through the filtering mechanism.

[0010] Preferably, the filtering mechanism includes a filtering pipeline and a filter which are communicated in sequence;

[0011] One end of the filtering pipeline away from the filter is communicated with the other end of the air outlet pipeline, and one end of the filter away from the filtering pipeline is communicated with the air extraction end of the vacuum pump;

[0012] The filtering pipeline includes an acceleration section and a filtering section. The acceleration section is used to accelerate the flow rate of the air flow. A filter net and a cleaning assembly are installed in the filtering section. The filter net is used to filter the air flow accelerated by the acceleration section, and the cleaning assembly is used to clean the filter net under the drive of the air flow accelerated by the acceleration section.

[0013] Preferably, the cross-sectional area of the channel of the acceleration section gradually decreases along the air flow direction.

[0014] Preferably, the channel diameter of the filtering section is equal to the diameter of the inlet end of the acceleration section.

[0015] Preferably, the cleaning assembly includes a bracket installed in the filtering section. A rotating shaft is rotatably installed between the bracket and the filter net. A fan blade and a cleaning brush are coaxially installed on the rotating shaft. The fan blade is arranged near the channel outlet of the acceleration section, and the cleaning brush is in contact with the filter net.

[0016] Preferably, a slag discharge pipe is communicated with the bottom end of the filtering section. The top end of the slag discharge pipe is arranged right opposite the filter net, and a sealing cylinder is installed at the bottom end of the slag discharge pipe in a threaded manner.

[0017] Preferably, the filter is detachably installed between the filtering pipeline and the vacuum pump.

[0018] Preferably, the filter is a metal filter.

[0019] The technical solution provided by the present utility model may include the following beneficial effects:

[0020] By setting the vacuum pump, the gas in the replacement chamber can be pumped away through the air outlet pipeline, and then the protective gas can be injected into the replacement chamber through the air inlet pipeline, so that the protective gas quickly fills the replacement chamber. The operation is simple and the efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the overall structural schematic diagram of the present utility model;

[0022] Figure 2 is the connection structural schematic diagram of the air outlet pipeline and the vacuum pump of the present utility model;

[0023] Figure 3 is the internal structural schematic diagram of the filtering pipeline of the present utility model.

[0024] Wherein: 1. Replacement bin; 2. Exhaust gas pipeline; 3. Intake gas pipeline; 4. Filtration mechanism; 41. Filtration pipeline; 411. Acceleration section; 412. Filtration section; 42. Cleaning assembly; 421. Bracket; 422. Rotating shaft; 423. Fan blade; 424. Cleaning brush; 43. Filter; 44. Slag discharge pipe; 45. Sealing cylinder; 5. Vacuum pump; 6. Lifting device; 61. Gate plate. Detailed implementation manners

[0025] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features, which are used to distinguish and describe the features, and there is no order or weight difference.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] The following combines the accompanying drawings Figures 1 to 3 and further illustrates the technical solutions of the present utility model through specific implementation manners.

[0029] As Figures 1-3 shown, a new type of kiln replacement chamber includes a replacement bin 1, an exhaust gas pipeline 2, an intake gas pipeline 3, and a filtration mechanism 4;

[0030] A plurality of lifting devices 6 are provided at the top of the replacement bin 1. At a position corresponding to the lifting device 6 inside the replacement bin 1, a gate plate 61 is provided. A replacement chamber 11 is formed between the adjacent gate plates 61 and the replacement bin 1. One end of each of the air outlet pipeline 2 and the air inlet pipeline 3 is communicated with the replacement chamber 11;

[0031] The other end of the air outlet pipeline 2 is installed with a vacuum pump 5 through the filtering mechanism 4.

[0032] By means of the provided vacuum pump 5, the gas in the replacement chamber 11 can be pumped away through the air outlet pipeline 2, and then the protective gas can be injected into the replacement chamber 11 through the air inlet pipeline 3, so that the protective gas quickly fills the replacement chamber 11. The operation is simple and the efficiency is high.

[0033] It should be noted that the replacement chamber of this kiln can be arranged at the feeding port or the discharging port of the roller hearth kiln.

[0034] Specifically, when the replacement chamber of the kiln is arranged at the feeding port of the roller hearth kiln for feeding, one of the gate plates 61 is opened and the other gate plate 61 is closed. After the material is conveyed into the replacement chamber 11 through the roller, one of the gate plates 61 is closed. Subsequently, the switch assembly of the air outlet pipeline 2 is opened, the switch assembly of the air inlet pipeline 3 is closed, and then the vacuum pump 5 is started to pump out the air in the replacement chamber 11 through the air outlet pipeline 2. When the air in the replacement chamber 11 is emptied, the switch assembly of the air outlet pipeline 2 is closed, the switch assembly of the air inlet pipeline 3 is opened, and the protective gas is injected into the replacement chamber 11 until the replacement chamber 11 is filled with the protective gas. Then the switch assembly of the air inlet pipeline 3 is closed to complete the gas replacement process of the replacement chamber 11. Subsequently, the other gate plate 61 is opened and the material is conveyed into the roller hearth kiln.

[0035] More specifically, when the replacement chamber of the kiln is arranged at the discharging port of the roller hearth kiln for discharging, the switch assembly of the air outlet pipeline 2 is opened, the switch assembly of the air inlet pipeline 3 is closed, and then the vacuum pump 5 is started to pump out the air in the replacement chamber 11 through the air outlet pipeline 2. When the air in the replacement chamber 11 is emptied, the switch assembly of the air outlet pipeline 2 is closed, the switch assembly of the air inlet pipeline 3 is opened, and the protective gas is injected into the replacement chamber 11 until the replacement chamber 11 is filled with the protective gas. Then the switch assembly of the air inlet pipeline 3 is closed to complete the gas replacement process of the replacement chamber 11. Subsequently, one of the gate plates 61 is opened to enable the material in the roller hearth kiln to enter the replacement chamber 11, then one of the gate plates 61 is closed, and then the other gate plate 61 is opened to convey the material out of the replacement chamber 11, and then the other gate plate 61 is closed.

[0036] As Figures 2-3 shown, the filtering mechanism 4 includes a filtering pipeline 41 and a filter 43 which are connected in sequence;

[0037] One end of the filter pipeline 41 away from the filter 43 is communicated with the other end of the air outlet pipeline 2, and one end of the filter 43 away from the filter pipeline 41 is communicated with the air extraction end of the vacuum pump 5;

[0038] The filter pipeline 41 includes an acceleration section 411 and a filtering section 412. The acceleration section 411 is used to accelerate the flow rate of the air flow. A filter net and a cleaning component 42 are installed in the filtering section 412. The filter net is used to filter the air flow accelerated by the acceleration section 411, and the cleaning component 42 is used to clean the filter net under the drive of the air flow accelerated by the acceleration section 411.

[0039] Specifically, the filter net in the filter pipeline 41 and the filter 43 can filter the gas, avoiding the pollution caused by directly discharging the extracted gas into the external environment. The filter net can filter larger impurities in the gas, avoiding the blockage of the filter 43 by impurities and affecting the filtering effect of the filter 43. At the same time, during the process of extracting gas, the cleaning component 42 can clean the filter net to avoid the blockage of the filter net by impurities.

[0040] As Figure 3 shown, the cross-sectional area of the channel of the acceleration section 411 gradually decreases along the air flow direction.

[0041] Specifically, the cross-sectional area of the channel of the acceleration section 411 gradually decreases along the air flow direction, which can accelerate the air flow, so that a faster air flow enters the filtering section 412.

[0042] As Figure 3 shown, the channel diameter of the filtering section 412 is equal to the inlet end diameter of the acceleration section 411.

[0043] Specifically, the channel diameter of the filtering section 412 being equal to the inlet end diameter of the acceleration section 411 can reduce the influence on the gas flow rate to ensure that the device has a good air extraction speed.

[0044] As Figure 3 shown, the cleaning component 42 includes a bracket 421 installed in the filtering section 412. A rotating shaft 422 is rotatably installed between the bracket 421 and the filter net. A fan blade 423 and a cleaning brush 424 are coaxially installed on the rotating shaft 422. The fan blade 423 is arranged near the channel outlet of the acceleration section 411, and the cleaning brush 424 is in contact with the filter net.

[0045] Specifically, by accelerating the flow rate of the air flow through the acceleration section 411, the flow rate of the air flow is faster after the air flow enters the filtering section 412 through the acceleration section 411, so as to better blow the fan blade 423 to rotate. The rotation of the fan blade 423 drives the cleaning brush 424 connected to the rotating shaft 422 to rotate to clean the filter net.

[0046] As Figures 2-3 shown, a slag discharge pipe 44 is connected to the bottom end of the filtering section 412. The top end of the slag discharge pipe 44 is disposed right opposite the filter net, and a sealing cylinder 45 is installed on the bottom end of the slag discharge pipe 44 in a threaded manner.

[0047] Specifically, the impurities swept by the cleaning brush 424 fall into the slag discharge pipe 44. The user can regularly remove the sealing cylinder 45 to discharge the impurities in the filtering section 412, preventing the impurities from accumulating at the filter net and affecting the filtering effect of the filter net.

[0048] As Figure 2 shown, the filter 43 is detachably installed between the filtering pipeline 41 and the vacuum pump 5.

[0049] Specifically, the filter being detachably installed between the filtering pipeline 41 and the vacuum pump 5 facilitates the replacement of the filter, ensuring that the device has a good filtering effect.

[0050] As Figure 2 shown, the filter 43 is a metal filter.

[0051] Specifically, the metal filter has good high-temperature resistance and mechanical strength, and can withstand the impact and vibration brought by high-temperature gas, ensuring that the device has a good filtering effect.

[0052] The technical principle of the present utility model has been described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present utility model and cannot be construed as limiting the protection scope of the present utility model in any way. Based on the explanations herein, those skilled in the art can readily conceive of other specific embodiments of the present utility model without creative efforts, and these embodiments will fall within the protection scope of the present utility model.

Claims

1. A new type of replacement chamber for a kiln, characterized in that: It includes a replacement bin (1), an air outlet pipeline (2), an air inlet pipeline (3), and a filtering mechanism (4); A number of lifting devices (6) are provided at the top of the replacement bin (1). At a position corresponding to the lifting device (6) inside the replacement bin (1), a sluice gate (61) is provided. A replacement chamber (11) is formed between the adjacent sluice gates (61) and the replacement bin (1). One ends of the air outlet pipeline (2) and the air inlet pipeline (3) are both communicated with the replacement chamber (11); The other end of the air outlet pipeline (2) is installed with a vacuum pump (5) through the filtering mechanism (4).

2. The novel kiln replacement chamber according to claim 1, characterized in that: The filtering mechanism (4) includes a filtering pipeline (41) and a filter (43) that are connected in sequence; One end of the filtering pipeline (41) far from the filter (43) is communicated with the other end of the air outlet pipeline (2), and one end of the filter (43) far from the filtering pipeline (41) is communicated with the air suction end of the vacuum pump (5); The filtering pipeline (41) includes an acceleration section (411) and a filtering section (412). The acceleration section (411) is used to accelerate the flow rate of the air flow. A filter screen and a cleaning component (42) are installed in the filtering section (412). The filter screen is used to filter the air flow accelerated by the acceleration section (411), and the cleaning component (42) is used to clean the filter screen under the drive of the air flow accelerated by the acceleration section (411).

3. A novel kiln replacement chamber according to claim 2, characterized in that: The cross-sectional area of the channel of the acceleration section (411) gradually decreases along the air flow direction.

4. A novel kiln replacement chamber according to claim 2, characterized in that: The channel diameter of the filtering section (412) is equal to the diameter of the inlet end of the acceleration section (411).

5. A novel kiln replacement chamber according to claim 2, characterized in that: The cleaning component (42) includes a bracket (421) installed in the filtering section (412). A rotating shaft (422) is rotatably installed between the bracket (421) and the filter screen. A fan blade (423) and a cleaning brush (424) are coaxially installed on the rotating shaft (422). The fan blade (423) is arranged near the channel outlet of the acceleration section (411), and the cleaning brush (424) is in contact with the filter screen.

6. A novel kiln replacement chamber according to claim 2, characterized in that: The bottom end of the filtering section (412) is communicated with a slag discharge pipe (44). The top end of the slag discharge pipe (44) is arranged directly opposite the filter screen. A sealing cylinder (45) is installed at the bottom end of the slag discharge pipe (44) by means of a thread.

7. A novel kiln replacement chamber according to claim 2, characterized in that: The filter (43) is detachably installed between the filtering pipeline (41) and the vacuum pump (5).

8. A novel kiln replacement chamber according to claim 2, characterized in that: The filter (43) is a metal filter.

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