Dewaxing kettle for recycling waste gas

Abstract

The utility model relates to the technical field of steam dewaxing, and discloses a waste gas recycling dewaxing kettle which comprises a steam generator and a dewaxing kettle body, the dewaxing kettle body is fixedly connected with the steam generator through a second connecting pipe, the top of the dewaxing kettle body is fixedly connected with a first connecting pipe, and the first connecting pipe is fixedly connected with a second connecting pipe. A heat exchange mechanism is arranged at one end, far away from the dewaxing kettle body, of the first connecting pipe, a temperature and pressure integrated meter is mounted at the top of the dewaxing kettle body, the heat exchange mechanism comprises a spray tower, and the spray tower is fixedly connected to one end, far away from the dewaxing kettle body, of the first connecting pipe. According to the dewaxing waste gas treatment device, dewaxing waste gas is cooled by the spray tower, and cooling water is sprayed by the water pump II, so that wax in the waste gas is condensed and settled to the hollow box and the screen for wax collection. And heated cooling water in the spray tower is pumped back to the steam generator by the water pump I for recycling, so that water resource circulation is realized, the energy consumption is reduced, and the environmental protection property is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a steam dewaxing technical field especially relates to a waste gas recycling utilization dewaxing kettle. BACKGROUND

[0002] The waste gas recycling utilization dewaxing kettle is widely used in the field of investment casting and is an indispensable key equipment in the dewaxing process. The equipment removes wax by heating the wax mold, recovers wax, and treats waste gas generated during the dewaxing process. It not only significantly improves the precision and quality of casting production, but also plays an important role in waste gas treatment and resource recovery. It effectively reduces energy consumption in industrial production and improves environmental performance, meeting the needs of modern industrial green development.

[0003] However, the dewaxing kettle equipment on the market still has some deficiencies in waste gas treatment and resource recovery, such as the difficulty in efficiently separating and recovering wax from waste gas, leading to resource waste. Secondly, the recycling rate of cooling water is low, increasing the water cost and energy consumption in the production process.

[0004] Therefore, a waste gas recycling utilization dewaxing kettle is proposed to solve the above problems. SUMMARY

[0005] To make up for the above shortcomings, the utility model provides a waste gas recycling utilization dewaxing kettle, aiming to improve the problem of inefficient separation and recovery of wax from waste gas and low recycling rate of cooling water in the prior art.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: a waste gas recycling utilization dewaxing kettle, comprising a steam generator and a dewaxing kettle body, the dewaxing kettle body and the steam generator are fixedly connected through a connecting pipe two, the dewaxing kettle body top is fixedly connected with a connecting pipe one, the connecting pipe one far away from the dewaxing kettle body one end is provided with a heat exchange mechanism, and the dewaxing kettle body top is installed with a temperature and pressure integrated meter.

[0007] The heat exchange mechanism includes a spray tower, the spray tower is fixedly connected at one end of the connecting pipe away from the dewaxing kettle body, a water pump two and a water pump one are arranged outside the spray tower, a connecting pipe four is fixedly connected to the output end of the water pump two, the connecting pipe four is fixedly connected to the inside of the spray tower at one end away from the water pump two, a water supply tank is connected to the input end of the water pump two through a connecting pipe six, a spray head is fixedly connected to one end of the connecting pipe four away from the water pump two, a production wax recovery mechanism is arranged in the inside of the spray tower, a connecting pipe five is fixedly connected to the input end of the water pump one, the connecting pipe five is fixedly connected to the inside of the spray tower at one end away from the water pump one, and a connecting pipe three is fixedly connected to the output end of the water pump one and fixedly connected to the top of the steam generator.

[0008] As a further description of the above technical solution:

[0009] The production wax recovery mechanism includes a hollow box, the hollow box is fixedly connected to the inside of the spray tower and located below the connecting pipe one interface, a screen is slidably connected to the inside of the hollow box, two plug blocks are fixedly connected to the outside of the screen, a fixed block corresponding to the plug blocks is fixedly connected to the outside of the hollow box, and a fixing mechanism is arranged in the inside of the fixed block.

[0010] As a further description of the above technical solution:

[0011] The fixing mechanism includes an outer shell, the outer shell is fixedly connected to the inside of the fixed block, an inner shell is fixedly connected to the inside of the fixed block, a plug pin is slidably connected to the inside of the inner shell, a spring is sleeved to the outside of the plug pin, and a self-locking assembly is arranged outside the spring.

[0012] As a further description of the above technical solution:

[0013] The self-locking assembly includes an L-shaped rod and a backing plate, the L-shaped rod is fixedly connected to the outside of the backing plate, the backing plate is fixedly connected to the outside of the plug pin in the middle, and an L-shaped groove is formed in the outside of the inner shell.

[0014] As a further description of the above technical solution:

[0015] A gas release valve is mounted in the connecting pipe one, and a valve is mounted in the connecting pipe two.

[0016] As a further description of the above technical solution:

[0017] The plug block is slidably connected to the inside of the fixed block, and the plug pin is inserted into the inside of the plug block.

[0018] As a further description of the above technical solution:

[0019] One end of the spring is fixedly connected outside the base plate, and the other end of the spring is in abutment with the inner wall of the inner shell.

[0020] Further description of the above technical solution:

[0021] The L-shaped rod is slidingly connected inside the L-shaped groove, and a pull ring is fixedly connected to one end of the fixed block away from the fixed block.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, the waste gas generated in the dewaxing process is cooled and treated by the spray tower, the cooling water is uniformly sprayed on the waste gas by the spray head through the water pump two, the wax in the waste gas is rapidly condensed and settled in the hollow box. The screen collects the recovered wax, and at the same time, the cooling water in the spray tower gradually warms up after multiple uses, the hot water is extracted by the water pump one and transported back to the steam generator as water source supplement, realizing the recycling of water resources, effectively reducing energy consumption, and improving the environmental protection and economy of the system.

[0024] 2. In the utility model, the hollow box, the screen, the plug and the fixed block realize efficient recovery of the wax in the waste gas, the screen is slidingly installed inside the hollow box, and is stably locked through the cooperation of the plug and the fixed mechanism, the fixed mechanism ensures the firmness of the screen through the insertion of the bolt, and the self-locking assembly is composed of the L-shaped rod and the L-shaped groove. When the screen needs to be disassembled, the self-locking of the bolt is realized by rotating the bolt, without the need for continuous external force, so that the operator can easily take out the screen for wax collection, improve the convenience of operation and the maintainability of the system, and ensure the efficiency and safety of the wax recovery work. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A first perspective view of the waste gas recycling and utilization dewaxing kettle is provided for the utility model;

[0026] Figure 2 A second perspective view of the waste gas recycling and utilization dewaxing kettle is provided for the utility model;

[0027] Figure 3 A structure diagram of the spray tower of the waste gas recycling and utilization dewaxing kettle is provided for the utility model;

[0028] Figure 4 For Figure 3 An enlarged view of B in the middle;

[0029] Figure 5 For Figure 3 An enlarged view of C in the middle;

[0030] Figure 6For Figure 3 Enlarged schematic view at A in the middle.

[0031] Legend:

[0032] 1, spray tower; 2, connecting pipe one; 3, air release valve; 4, temperature and pressure integrated meter; 5, valve; 6, connecting pipe two; 7, connecting pipe three; 8, steam generator; 9, dewaxing kettle body; 10, water supply tank; 11, hollow box; 12, spray head; 13, connecting pipe four; 14, connecting pipe five; 15, water pump one; 16, screen; 17, water pump two; 18, connecting pipe six; 19, plug; 20, shell; 21, L-shaped groove; 22, L-shaped rod; 23, fixed block; 24, pad; 25, spring; 26, bolt; 27, inner shell. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0034] With reference to Figures 1-6 , the utility model provides an embodiment: a kind of waste gas recovery recycling dewaxing kettle, including steam generator 8 and dewaxing kettle body 9, dewaxing kettle body 9 is fixedly connected between steam generator 8 by connecting pipe two 6, dewaxing kettle body 9 top is fixedly connected with connecting pipe one 2, connecting pipe one 2 is provided with heat exchange mechanism away from dewaxing kettle body 9 one end, and dewaxing kettle body 9 top is equipped with temperature and pressure integrated meter 4;

[0035] The heat exchange mechanism includes a spray tower 1, which is fixedly connected to the end of the connecting pipe 2 away from the dewaxing kettle body 9. Water pump 2 17 and water pump 1 15 are arranged on the outside of the spray tower 1. The output end of water pump 2 17 is fixedly connected to connecting pipe 4 13, and the end of connecting pipe 4 13 away from water pump 2 17 is fixedly connected to the inside of the spray tower 1. The input end of water pump 2 17 is connected to the water supply tank 10 through connecting pipe 6 18, and the end of connecting pipe 4 13 away from water pump 2 17 is fixedly connected to the spray head 12. A production wax recovery mechanism is arranged inside the spray tower 1, the input end of water pump 15 is fixedly connected to connecting pipe 5 14, and the end of connecting pipe 5 14 away from water pump 15 is fixedly connected to the inside of the spray tower 1, the output end of water pump 15 is fixedly connected to connecting pipe 3 7, and the end of connecting pipe 3 7 away from water pump 15 is fixedly connected to the top of the steam generator 8, the inside of connecting pipe 1 2 is installed with an air release valve 3, and the inside of connecting pipe 2 6 is installed with a valve 5. The steam generator 8 is used to provide the steam required for the operation of the dewaxing kettle body 9, and is fixedly connected to the dewaxing kettle body 9 through the connecting pipe 2 6 to realize the transportation of steam; the dewaxing kettle body 9 is the core component of the dewaxing operation, which is used to heat the wax mold and remove the wax. At the same time, a connecting pipe 1 2 is fixedly connected to the top, which is used to transport the waste gas generated during the dewaxing process to the heat exchange mechanism for treatment; the heat exchange mechanism includes a spray tower 1, which is fixedly connected to the end of the connecting pipe 1 2 away from the dewaxing kettle body 9, and is used to cool the waste gas and realize the recovery of wax in the waste gas; a water pump 2 17 and a water pump 1 15 are arranged on the outside of the spray tower 1. The function of the water pump 2 17 is to transport the cooling water in the water supply tank 10 to the inside of the spray tower 1 through the connecting pipe 4 13, and to spray the water through the spray head 12 spray-cools the waste gas; a production wax recovery mechanism is provided inside the spray tower 1 for separating and recovering wax from the cooled waste gas; a water pump 15 extracts hot cooling water from the inside of the spray tower 1 through a connecting pipe 5 14, and transports the water back to the steam generator 8 through a connecting pipe 3 7, for replenishing the water source of the steam generator 8, thereby realizing water recycling; a relief valve 3 is installed inside the connecting pipe 1 2 for opening the connecting pipe 1 2 to allow the waste gas to flow into the spray tower 1; a valve 5 is installed inside the connecting pipe 2 6 for opening the connecting pipe 2 6 to allow steam to enter the dewaxing kettle body 9; a temperature and pressure integrated meter 4 is installed on the top of the dewaxing kettle body 9 for real-time monitoring of the temperature and pressure inside the dewaxing kettle body 9 to ensure the stability and safety of the dewaxing process.

[0036] Reference Figures 1-6The production wax recovery mechanism comprises a hollow box 11 fixedly connected inside the spray tower 1 and located below the interface of the connecting pipe one 2, a screen 16 slidingly connected inside the hollow box 11, two plug blocks 19 fixedly connected outside the screen 16, a fixed block 23 fixedly connected outside the hollow box 11 and corresponding to the plug blocks 19, and a fixing mechanism arranged inside the fixed block 23. The hollow box 11 is fixedly connected inside the spray tower 1 and located below the interface of the connecting pipe one 2, for receiving the wax precipitated after the waste gas in the spray tower 1 is cooled; the screen 16 is slidingly connected inside the hollow box 11, for collecting the recovered wax; the two plug blocks 19 are fixedly connected outside the screen 16, for cooperating with the external fixing mechanism when the screen 16 slides, ensuring the stability of the screen 16 and facilitating the disassembly and assembly; the fixed block 23 is fixedly connected outside the hollow box 11 and corresponds to the plug blocks 19, for cooperating with the plug blocks 19 to realize the installation of the screen 16; and the fixing mechanism is arranged inside the fixed block 23, for locking the plug blocks 19, stabilizing the position of the screen 16 during the working process, and facilitating the operation when the wax on the screen 16 needs to be collected, so as to realize the efficient recovery and separation of the wax in the waste gas

[0037] With reference to Figure 3 、 Figure 4 and Figure 5 , the fixing mechanism comprises an outer shell 20 fixedly connected outside the fixed block 23, an inner shell 27 fixedly connected inside the fixed block 23, a plug pin 26 slidingly connected inside the inner shell 27, a spring 25 sleeved outside the plug pin 26, a self-locking assembly arranged outside the spring 25, the plug block 19 slidingly connected inside the fixed block 23, and the plug pin 26 inserted into the plug block 19. The outer shell 20 is used for bearing various parts inside the outer shell 20, ensuring normal operation. The inner shell 27 is used for providing a sliding place for the plug pin 26. The plug pin 26 is used for being inserted into the plug block 19, realizing the locking of the screen 16. The spring 25 is used for preventing the plug pin 26 from moving without external force. The self-locking assembly is used for locking the plug pin 26 by rotating the plug pin 26 when the plug pin 26 is pulled out of the plug block 19, without pulling the plug pin 26 all the time.

[0038] With reference to Figure 3 、 Figure 4 and Figure 5The self-locking assembly includes an L-shaped rod 22 and a backing plate 24. The L-shaped rod 22 is fixedly connected to the outside of the backing plate 24. The middle of the backing plate 24 is fixedly connected to the outside of the latch 26. An L-shaped groove 21 is formed on the outside of the inner shell 27. One end of the spring 25 is fixedly connected to the outside of the backing plate 24, and the other end of the spring 25 abuts the inner wall of the inner shell 27. The L-shaped rod 22 is slidably connected to the inside of the L-shaped groove 21. The end of the latch 26 away from the fixed block 23 is fixedly connected to the pull ring. When the latch 26 is pulled out of the insertion block 19, the L-shaped rod 22 is rotated to make the L-shaped rod 22 stuck in the L-shaped groove 21, thereby locking the latch 26. This eliminates the need to constantly pull on the latch 26, making it easier to remove the screen 16 and install it.

[0039] Working Principle: Steam generator 8 supplies steam to the dewaxing kettle body 9 via connecting pipe 2 6 . Once inside the dewaxing kettle body 9, the steam heats the wax pattern, melting and releasing the wax. During this process, the temperature and pressure inside the dewaxing kettle body 9 are monitored in real time by a top-mounted integrated temperature and pressure gauge 4 to ensure the safety and stability of the dewaxing process. Exhaust gases generated during the dewaxing process are discharged through connecting pipe 1 2 , which is fixed to the top. After being controlled by a vent valve 3 , the exhaust gases flow to the spray tower 1 in the heat exchange mechanism.

[0040] After entering the spray tower 1, the exhaust gas passes through the spray head 12 inside the spray tower 1, where it is sprayed and cooled by cooling water supplied by water pump 2 17. Cooling water is delivered from the water supply tank 10 through connecting pipe 6 18 and water pump 2 17 to the interior of the spray tower 1. It is then evenly sprayed onto the exhaust gas through connecting pipe 4 13 and the spray head 12, causing the wax in the exhaust gas to condense and settle during the cooling process. The wax separated from the cooled exhaust gas is collected by the screen 16 in the hollow box 11 inside the spray tower 1. The screen 16 is mounted inside the hollow box 11 via a fixing block 23 and an insert 19. The insert 19 is locked by a fixing mechanism to ensure the stability of the screen 16 during operation. The fixing mechanism consists of an outer shell 20, an inner shell 27, a latch 26, a spring 25, and a self-locking assembly. The latch 26 is inserted into the insert 19, and the spring 25 provides a reset force, keeping the latch 26 locked in the absence of external force. When the screen 16 needs to be removed for wax collection, the latch 26 can be pulled out of the plug block 19 by using the pull ring, and the latch 26 can be rotated at the same time to make the L-shaped rod 22 in the self-locking assembly fit into the L-shaped groove 21, thereby locking the latch 26 and making it convenient for the operator to remove the screen 16 for wax collection.

[0041] After multiple cycles, the cooling water inside spray tower 1 gradually heats up. Water pump 15 extracts hot water from the spray tower 1 and delivers it back to steam generator 8 via connecting pipe 5 14 and connecting pipe 3 7, where it serves as a supplemental water source. This achieves water recycling and reduces energy consumption. Simultaneously, valve 5 controls the steam flow rate to ensure that the steam supply meets the process requirements of dewaxing kettle 9.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dewaxing kettle for recycling and recovering waste gas, comprising a steam generator (8) and a dewaxing kettle body (9), characterized in that: The dewaxing kettle body (9) is fixedly connected to the steam generator (8) via a second connecting pipe (6). The top of the dewaxing kettle body (9) is fixedly connected to a first connecting pipe (2). A heat exchange mechanism is provided at one end of the first connecting pipe (2) away from the dewaxing kettle body (9). A temperature and pressure integrated gauge (4) is installed on the top of the dewaxing kettle body (9). The heat exchange mechanism includes a spray tower (1), the spray tower (1) is fixedly connected to the end of the connecting pipe (2) away from the dewaxing kettle body (9), a water pump (2) (17) and a water pump (15) are arranged on the outside of the spray tower (1), the output end of the water pump (17) is fixedly connected to the connecting pipe (4) (13), the end of the connecting pipe (4) (13) away from the water pump (17) is fixedly connected to the inside of the spray tower (1), the input end of the water pump (17) is connected to the water supply tank (10) through the connecting pipe (6) (18), the connecting pipe (6) (18) is connected to the water supply tank (10 ... fixedly connected to the output end of the water pump (17) The end of pipe four (13) away from the water pump two (17) is fixedly connected to a spray head (12), a wax recovery mechanism for production is provided inside the spray tower (1), the input end of the water pump one (15) is fixedly connected to the connecting pipe five (14), the end of the connecting pipe five (14) away from the water pump one (15) is fixedly connected to the inside of the spray tower (1), the output end of the water pump one (15) is fixedly connected to the connecting pipe three (7), the end of the connecting pipe three (7) away from the water pump one (15) is fixedly connected to the top of the steam generator (8).

2. The waste gas recycling and dewaxing kettle according to claim 1, characterized in that: The production wax recovery mechanism comprises a hollow box (11), the hollow box (11) is fixedly connected to the inside of the spray tower (1) and is located below the interface of the connecting pipe (2), a screen (16) is slidably connected to the inside of the hollow box (11), two plug-in blocks (19) are fixedly connected to the outside of the screen (16), a fixed block (23) corresponding to the plug-in block (19) is fixedly connected to the outside of the hollow box (11), and a fixing mechanism is provided inside the fixed block (23).

3. The waste gas recycling and dewaxing kettle according to claim 2, characterized in that: The fixing mechanism comprises an outer shell (20), the outer side of the outer shell (20) is fixedly connected to the inside of the fixing block (23), the inner side of the fixing block (23) is fixedly connected to the inner side of the fixing block (23), the inner side of the inner shell (27) is slidably connected to the inner side of the fixing block (23), a spring (25) is sleeved on the outer side of the fixing block (23), and a self-locking component is provided on the outer side of the fixing block (23).

4. The waste gas recycling and dewaxing kettle according to claim 3, characterized in that: The self-locking assembly comprises an L-shaped rod (22) and a backing plate (24), wherein the L-shaped rod (22) is fixedly connected to the outside of the backing plate (24), the middle portion of the backing plate (24) is fixedly connected to the outside of the latch (26), and an L-shaped groove (21) is provided on the outside of the inner shell (27).

5. The waste gas recycling and dewaxing kettle according to claim 1, characterized in that: The first connecting pipe (2) is internally installed with an air release valve (3), and the second connecting pipe (6) is internally installed with a valve (5).

6. The waste gas recycling and dewaxing kettle according to claim 3, characterized in that: The insert block (19) is slidably connected to the interior of the fixed block (23), and the latch (26) is inserted into the interior of the insert block (19).

7. The waste gas recycling and dewaxing kettle according to claim 4, characterized in that: One end of the spring (25) is fixedly connected to the outside of the pad (24), and the other end of the spring (25) is in contact with the inner wall of the inner shell (27).

8. The waste gas recycling and dewaxing kettle according to claim 4, characterized in that: The L-shaped rod (22) is slidably connected to the inside of the L-shaped groove (21), and one end of the latch (26) away from the fixing block (23) is fixedly connected to a pull ring.

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