Anti-blocking spray gun for laboratory waste liquid treatment

Abstract

The application provides a kind of anti-blocking lance for laboratory waste liquid treatment, which has a three-channel structure, including waste liquid channel (1), air channel (2), cooling channel (3); the first nozzle of waste liquid channel (1) is placed in air channel (2); and flush with the end of the second nozzle arranged in air channel (2); air channel (1) is connected to air, and is sprayed out through the second nozzle, mixed with the waste liquid sprayed out by the first nozzle in waste liquid channel (2); cooling channel (3) is placed outside air channel (2), and the medium inlet is arranged at the position close to the hearth in cooling channel (3), and the medium outlet is arranged at the position away from the hearth; the cooling medium enters from the medium inlet close to the hearth, and comes out from the medium outlet away from the hearth. The lance of the application can prevent the particles in the waste liquid from precipitating and blocking the lance.

Description

Technical Field

[0001] This invention belongs to the field of purification equipment technology and relates to an anti-clogging spray gun for laboratory waste liquid treatment. Background Technology

[0002] Laboratory waste liquids mainly originate from experimental research laboratories of various scientific research institutions and research and teaching laboratories of universities. The composition of laboratory waste liquids is complex and may contain various solid particles that are insoluble in the waste liquid, resulting in significant differences in the flowability of the waste liquid.

[0003] The spray gun is a crucial piece of equipment used to inject waste liquid into the furnace. Its nozzle extends into the furnace, where it receives a significant amount of radiant heat, easily leading to very high spray gun temperatures. High spray gun temperatures cause the waste liquid to evaporate and vaporize within the gun, and solid particles in the waste liquid can adhere to the inner wall of the spray gun, eventually causing blockage. In pyrolysis processes, once the spray gun becomes clogged, the entire process must be stopped to address the blockage, resulting in low waste liquid treatment efficiency. Therefore, engineers have focused on researching materials more suitable for the spray gun. While using nozzles made of high-temperature and corrosion-resistant materials can mitigate the problem of excessively high spray gun temperatures and blockages to some extent, these high-performance materials also increase the cost of the spray gun. Summary of the Invention

[0004] To address the problem of easy clogging of spray guns in existing technologies, this invention provides an anti-clogging spray gun for laboratory waste liquid treatment. It not only avoids the problem of easy clogging caused by excessive spray gun temperature, but also has a lower cost.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This invention provides an anti-clogging spray gun for laboratory waste liquid treatment, which has a three-channel structure, including a waste liquid channel, an air channel, and a cooling channel;

[0007] The first nozzle of the waste liquid channel is placed inside the air channel and is flush with the end of the second nozzle located inside the air channel; air is introduced into the air channel and sprayed out through the second nozzle, mixing with the waste liquid sprayed out by the first nozzle inside the waste liquid channel;

[0008] The cooling channel is located outside the air channel. The cooling channel has a medium inlet near the furnace and a medium outlet away from the furnace. The cooling medium enters through the medium inlet near the furnace and exits through the medium outlet away from the furnace.

[0009] More preferably:

[0010] The anti-clogging spray gun also includes an anti-clogging component; the anti-clogging component includes an anti-clogging paddle, a power unit, and a track;

[0011] There are two anti-blocking paddles, one of which is attached to the ends of the first and second nozzles, and the other can be attached to the first paddle and move relative to it; each anti-blocking paddle has a semi-circular ring structure; the two anti-blocking paddles can move relative to each other and towards each other within the track under the drive of the power component.

[0012] More preferably:

[0013] The air inlets of the air passage are arranged tangentially to the air passage itself.

[0014] More preferably:

[0015] The anti-clogging spray gun also includes a lower baffle, which is fixed inside the air channel; the upper end face of the lower baffle is flush with the lowest end of the second nozzle in the air channel.

[0016] As can be seen from the above technical solution of the present invention, the present invention has the following beneficial effects:

[0017] The spray gun of this invention has a cooling channel to effectively cool the spray gun and prevent particulate matter in the waste liquid from precipitating out and clogging the spray gun.

[0018] When the spray gun becomes clogged, the present invention can partially loosen and break down the blockage at the spray gun outlet by moving the lever. Under the air blowing force in the air channel, the scale that clogs the nozzle can be basically removed.

[0019] This invention allows for adjustment of the size of the second nozzle used for air jetting by moving a lever, thereby regulating the air supply to different types of waste liquids and achieving precise waste liquid treatment.

[0020] This invention places the waste liquid channel inside the air channel, with the nozzles of the two channels aligned. This allows the waste liquid to be atomized not only by the pressure provided by the waste liquid channel itself but also by the pressure provided by the air ejected from the air channel, thus producing a good two-fluid atomization effect. The better the waste liquid atomization, the easier the subsequent pyrolysis treatment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a layout diagram of the air inlets;

[0023] Figure 3 Schematic diagram of the anti-blocking paddle;

[0024] Figure 4 This is a schematic diagram of the nozzle when the two anti-clogging paddles overlap.

[0025] Figure 5 A schematic diagram showing two anti-clogging tabs being pulled apart to form a circular spray nozzle;

[0026] Figure 6 This is a schematic diagram of the track structure;

[0027] Figure 7 This is a schematic diagram of the lower baffle.

[0028] Figure label:

[0029] Waste liquid channel 1; air channel 2; sealing sleeve 21; air inlet pipe 22; cooling channel 3; sealing plate 31; third pipe 32; anti-blocking component 4; anti-blocking paddle 41; power component 42; track 43; lower baffle 5. Detailed Implementation

[0030] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0031] The terms used in this application, such as top, bottom, left, right, inside, outside, front end, rear end, head, and tail, are based on the orientations or positional relationships shown in the accompanying drawings. Different drawings may result in different positional relationships, therefore they should not be construed as limiting the scope of protection.

[0032] In this invention, the terms "installation," "connection," "interlocking," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, or a connection that allows communication between components. They can also refer to a direct connection or an indirect connection through an intermediate medium. Furthermore, they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0033] Example:

[0034] This invention provides a laboratory waste liquid treatment anti-clogging spray gun, the structure of which is as follows: Figure 1 As shown, the anti-clogging spray gun has a three-channel structure, including a waste liquid channel 1, an air channel 2, and a cooling channel 3 arranged sequentially from the inside out; the first nozzle of the waste liquid channel 1 is placed inside the air channel 2 and is flush with the end of the second nozzle set inside the air channel 2; waste liquid is introduced into the waste liquid channel 1 and sprayed out through the first nozzle, mixing with the air sprayed out by the second nozzle inside the air channel 1; the cooling channel 3 is placed outside the air channel 2, and the cooling channel 3 has a medium inlet near the furnace and a medium outlet away from the furnace; the cooling medium enters from the medium inlet near the furnace and exits from the medium outlet away from the furnace.

[0035] The structure and function of each component are detailed below:

[0036] Waste liquid channel 1:

[0037] Waste liquid channel 1 is used to introduce waste liquid and send it into the furnace for treatment; waste liquid channel 1 is formed by a hollow first tube. One end of the first tube is connected to the waste liquid conveying pipe, and the other end is a cone-shaped first nozzle.

[0038] Air passage 2:

[0039] Air passage 2 is used to introduce air, providing the oxygen required for the thermal pyrolysis of waste liquid and providing power for the atomization of waste liquid; it is formed by a second pipe fitted outside the first pipe, a second nozzle and a sealing sleeve 21; the first pipe extends into the second pipe and the ends of the first nozzle and the second nozzle are flush; the sealing sleeve 21 is fitted outside the first pipe and can seal one end of the second pipe; the other end of the second pipe extends into the furnace.

[0040] Air inlet pipe 22 is tangentially connected to air passage 2, such as Figure 2 As shown, the air inlet pipe 22 enters the air channel 2 tangentially, ensuring that the air rotates in the air channel 2 and exits the air channel 2 forward. At the nozzle position, it mixes with the waste liquid sprayed from the waste liquid channel 1, making the air and waste liquid mix more evenly.

[0041] Cooling channel 3:

[0042] Cooling channel 3 is used to introduce circulating cooling medium, such as cooling water, to cool air channel 1 and waste liquid channel 2; it is formed by a third pipe 32 sleeved on the outside of the second pipe and two sealing plates 31; the two sealing plates 31 can be sleeved on the outside of the second pipe and can block both ends of the third pipe.

[0043] Cooling channel 3 has a medium inlet near the furnace and a medium outlet away from the furnace. The cooling medium enters through the medium inlet near the furnace and exits through the medium outlet away from the furnace. The large temperature difference heat exchange results in good cooling effect and saves on the amount of cooling medium used.

[0044] Anti-blocking component 4:

[0045] The anti-clogging component 4 can change the size of the spray gun nozzle, and includes an anti-clogging paddle 41, a power unit 42, and a track 43. The anti-clogging paddle 41 can move relative to and towards each other within the track 43 under the drive of the power unit 42, thereby changing the size of the spray gun nozzle.

[0046] The anti-clogging paddle 41 consists of two pieces. The first piece is attached to the ends of the first and second nozzles, while the second piece can be attached to the first piece and move relative to it. The structure of the anti-clogging paddle 41 is as follows: Figure 3 As shown, each anti-blocking paddle 41 has a semi-circular ring structure.

[0047] During normal use, such as Figure 4 As shown, two anti-clogging paddles 41 are stacked and partially attached to each other. One of them is attached to the end of the first nozzle of the first tube and the second nozzle of the second tube, while the other can be attached to the first paddle and move relative to it.

[0048] The power unit 42 uses an electric or hydraulic push rod; the push rod end of the power unit 42 is connected to the anti-clogging disc 41. After the nozzle of the spray gun becomes clogged, the power unit 42 is activated to move outward, driving the anti-clogging disc 41 to move outward; when the two anti-clogging discs 41 move outward relative to each other, the portion of the inner circle of each anti-clogging disc 41 that is covered gradually decreases, thereby causing the nozzle of the entire spray gun to gradually increase in size from an ellipse to a circle. Figure 5 The maximum nozzle size is shown.

[0049] Similarly, as the power component 42 moves inward, the nozzle of the spray gun changes from a circle to an ellipse, and the ellipse gradually becomes smaller until it reaches the smallest ellipse.

[0050] The structure of track 43 is as follows Figure 6 As shown, the anti-blocking paddle 41 can be limited in its running trajectory to prevent misalignment of the anti-blocking paddle 41.

[0051] The structure of the lower baffle 5 is as follows Figure 7 As shown, the lower baffle 5 is fixed inside the air channel 2 and does not move with the anti-blocking paddle 41; the upper end face of the lower baffle 5 is flush with the lowest end of the second nozzle of the air channel 2. The setting of the lower baffle 5 ensures that the airflow in the air channel 2 is ejected horizontally, effectively preventing the airflow from flowing back into the gap between the anti-blocking paddle 41 and the air channel 2.

[0052] As can be seen from the specific solutions of the present invention described above, the present invention has the following beneficial effects:

[0053] 1. By setting up a cooling channel, the cooling medium introduced can promptly remove the radiant heat received by the spray gun, so the temperature of the spray gun will not rise, and the particulate matter in the waste liquid will not precipitate and adhere to the spray gun, thus preventing the spray gun from becoming clogged.

[0054] 2. The cooling medium enters from a position close to the furnace and exits from a position far from the furnace, resulting in a large temperature difference for heat exchange, good cooling effect, and saving the amount of cooling medium used.

[0055] 3. The present invention can remove the scale clogging the spray gun nozzle by adjusting the position of the anti-clogging paddle 41: After the spray gun is clogged, the anti-clogging paddle 41 moves, which can partially loosen and break the scale attached to the outlet end of the organic waste liquid. Under the air blowing force in the air channel, the scale clogging the spray gun nozzle can be basically removed.

[0056] 4. The amount of waste liquid that can be processed can be adjusted by adjusting the position of the anti-clogging lever 41.

[0057] Different waste liquids have different compositions and calorific values, resulting in different air requirements. When introducing waste liquids at different flow rates, the amount of air supplied can be easily adjusted by changing the position of the anti-clogging fin 41 to ensure optimal waste liquid treatment results.

[0058] 5. The lower baffle 5 is fixedly connected to the air channel and does not move with the anti-blocking paddle 41. Its upper end face is flush with the lowest end of the second nozzle of the air channel, which can ensure the horizontal ejection of airflow.

[0059] 6. It can produce excellent two-fluid atomization effect:

[0060] This invention places the waste liquid channel 1 inside the air channel 2, with the nozzles of the two channels aligned. This allows the atomization power of the waste liquid to be provided not only by the pressure supplied by the waste liquid channel itself but also by the pressure provided by the air ejected from the air channel 2, thus producing a good two-fluid atomization effect. The better the waste liquid atomization, the easier the subsequent pyrolysis treatment.

[0061] Although the principles of the present invention have been described in detail above with reference to preferred embodiments, those skilled in the art should understand that the above embodiments are merely illustrative explanations of the implementation of the present invention and are not intended to limit the scope of the present invention. The details in the embodiments do not constitute a limitation on the scope of the present invention. Any obvious changes, such as equivalent transformations or simple substitutions, based on the technical solutions of the present invention without departing from the spirit and scope of the present invention fall within the protection scope of the present invention.

Claims

1. A clog-resistant spray gun for treating laboratory waste liquid, characterized in that: The anti-clogging spray gun has a three-channel structure, including a waste liquid channel (1), an air channel (2), a cooling channel (3), and an anti-clogging component (4). The first nozzle of the waste liquid channel (1) is placed inside the air channel (2) and is flush with the end of the second nozzle set inside the air channel (2); air is introduced into the air channel (2) and sprayed out through the second nozzle, mixing with the waste liquid sprayed out by the first nozzle inside the waste liquid channel (1); The cooling channel (3) is located outside the air channel (2). The cooling channel (3) has a medium inlet near the furnace and a medium outlet away from the furnace. The cooling medium enters through the medium inlet located near the furnace and exits through the medium outlet located away from the furnace. The anti-blocking component (4) includes two anti-blocking paddles (41), a power component (42), and a track (43); wherein the first anti-blocking paddle is attached to the ends of the first nozzle and the second nozzle, and the other anti-blocking paddle is able to be attached to the first anti-blocking paddle and move relative to it; the two anti-blocking paddles (41) can move relative to each other and towards each other within the track (43) under the drive of the power component (42).

2. The anti-clogging spray gun for laboratory waste liquid treatment according to claim 1, characterized in that: The anti-blocking paddle (41) has a semi-circular structure.

3. A clog-resistant spray gun for laboratory waste liquid treatment according to claim 1 or 2, characterized in that: The air inlet of the air passage (2) is arranged tangentially to the air passage (2).

4. The anti-clogging spray gun for laboratory waste liquid treatment according to claim 1, characterized in that: The anti-clogging spray gun also includes a lower baffle (5), which is fixed inside the air channel (2); the upper end face of the lower baffle (5) is flush with the lowest end of the second nozzle of the air channel (2).

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