Artificial stone production line exhaust gas purification system

Abstract

The application provides a man-made stone production line waste gas purification system, which comprises a purification tank and a detection tank, a purification liquid is arranged in the inner cavity of the purification tank, a variable cavity is arranged at the top of the inner cavity of the detection tank, and a gas sensor is arranged in the inner cavity of the variable cavity; wherein the waste gas is purified by the purification liquid and then introduced into the variable cavity. The application can prevent the waste gas treatment system from stopping during operation, thereby greatly improving the treatment efficiency of the waste gas, setting the waste gas treatment as intermittent treatment, not needing to adjust the waste gas before waste gas treatment, only needing to introduce the waste gas into the device to treat the waste gas, being extremely convenient to use, and when the gas in the waste gas treatment system is substandard, only the decrease of the concentration of the purification liquid can cause it because the waste gas purification system is quantitative purification and the treated waste gas is uniformly mixed, so when the waste gas treatment is substandard, only the concentration of the purification liquid needs to be increased, which is extremely convenient to use.

Description

Technical Field

[0001] This invention relates to the field of waste gas purification technology, and in particular to a waste gas purification system for artificial stone production lines. Background Technology

[0002] Waste gas purification mainly refers to the treatment of industrial waste gases generated in industrial sites, such as particulate matter, flue gas, odorous gases, and toxic and harmful gases. Common waste gas purification methods include factory flue gas purification, workshop dust gas purification, organic waste gas purification, odor removal, acid and alkali waste gas purification, and chemical waste gas purification.

[0003] The methods for treating waste gas can be categorized as follows:

[0004] Catalytic oxidation method for waste gas treatment: Under the effect of a catalyst, nitrogen oxides in waste gas are rapidly oxidized into carbon monoxide and water at a relatively low temperature, thereby achieving the effect of purification.

[0005] Chemical reaction method: This method utilizes the neutralization reaction characteristics of certain components in waste gas and pharmaceuticals during production to remove pollutants from the waste gas; common washing methods include acid and alkali washing, chlorination washing, and hydrogen peroxide washing.

[0006] Activated carbon adsorption method: Activated carbon is used to adsorb odor components in polluted waste gas. Polluted waste gas passes through the activated carbon layer, the pollutants are adsorbed, and the clean waste gas is discharged from the adsorption tower.

[0007] Artificial stone is mainly made by crushing and color-sorting natural stone, then bonding it together with pigments and other additives using resin. Unsaturated polyester resin is used as a binder in artificial stone production. This unsaturated polyester resin contains styrene, which primarily acts as a cross-linking agent. During the process of vibrating and pressurizing the uniformly mixed artificial stone raw material mixture in the sealed chamber of a "vibration press molding machine," air is extracted from the sealed chamber using a vacuum extraction method. A small amount of styrene monomer waste gas is released during this vacuuming process. How to treat this styrene-containing waste gas is a problem faced by artificial stone manufacturers.

[0008] Currently, chemical reaction methods are generally used to treat styrene produced by artificial stone production lines.

[0009] The existing technology has the following shortcomings: Firstly, to improve the purification efficiency of waste gas, most existing technologies treat waste gas using a continuous purification method. Before purification, the waste gas purification system needs to be debugged, meaning the waste gas is introduced into the purification system for treatment. Only after the waste gas meets the purification standards can it be discharged. During the period when substandard waste gas is discharged, it needs to be collected and treated again, requiring repeated debugging, making the waste gas purification system very inconvenient to use. Secondly, when waste gas is not completely purified during the treatment process, resulting in substandard purification, the waste gas treatment system will issue an over-standard warning. At this time, the waste gas treatment system will stop operating to investigate the cause of the substandard waste gas treatment, further complicating its use. Summary of the Invention

[0010] This invention addresses the shortcomings of existing technologies by providing a waste gas purification system for artificial stone production lines.

[0011] The present invention solves the above-mentioned technical problems through the following technical means: an exhaust gas purification system for artificial stone production lines, including a purification tank and a detection tank. The purification tank is filled with a purification liquid, and the top of the detection tank is provided with a variable cavity. A gas sensor is installed in the variable cavity. The purification liquid purifies the exhaust gas and then introduces it into the variable cavity. The gas sensor detects that the purified gas in the variable cavity meets the standards before it is discharged.

[0012] Preferably, the inner cavity of the detection tank is provided with a movable plate that is movably connected to the inner wall of the detection tank in a sealed manner, the variable cavity is formed between the movable plate and the top of the inner cavity of the detection tank, and the gas sensor is installed on the top of the inner cavity of the detection tank.

[0013] Preferably, a controller is installed on the outside of the detection tank, an exhaust pipe is connected through the top of the detection tank, a solenoid valve is installed on the exhaust pipe, a pressure sensor is connected to the bottom of the inner cavity of the detection tank, and a lifting mechanism is installed at the bottom of the detection tank.

[0014] Preferably, the lifting mechanism includes a first motor connected to one side of the bottom of the detection tank, a fixed sleeve disposed at the bottom of the inner cavity of the detection tank, and a lever connected to the outside of the fixed sleeve. The output shaft of the first motor passes through the detection tank, and the fixed sleeve is connected to the outside of the output shaft of the first motor. The output end of the pressure sensor and the output end of the gas sensor are both electrically connected to the input end of the controller. The output end of the controller is electrically connected to the input end of the first motor and the input end of the solenoid valve.

[0015] Preferably, the purification tank is equipped with a bubble segmentation mechanism, which includes a second motor connected to the bottom of the purification tank and multiple sets of rotating segmenting plates evenly distributed from top to bottom inside the purification tank. The output shaft of the second motor passes through the purification tank, and the rotating segmenting plates are connected to the outside of the output shaft of the second motor. Each set of rotating segmenting plates is arranged in a ring array.

[0016] Preferably, the purification tank is equipped with a stirring mechanism, which includes a third motor connected to the top of the purification tank, a rotating frame disposed inside the purification tank, and water-dispensing plates connected to both sides inside the rotating frame. The output shaft of the third motor passes through the purification tank and is connected to the rotating frame.

[0017] Preferably, a gas guide pipe is connected between the top of the purification tank and the top of the detection tank, and a one-way gas valve is installed on the gas guide pipe.

[0018] Preferably, an atomizing mechanism is connected between the purification tank and the detection tank. The atomizing mechanism includes a water pump disposed between the purification tank and the detection tank, a liquid storage box disposed at the top of the inner cavity of the detection tank, and an atomizing nozzle connected to the bottom of the liquid storage box. Water supply pipes are connected between the water pump and the bottom of the purification tank, between the liquid storage box, and between the purification tank and the detection tank.

[0019] The beneficial effects of this invention are:

[0020] This invention uses a purification liquid in a purification tank to purify waste gas. The purified waste gas then enters a variable cavity at the top of the detection tank. A gas sensor detects the treated waste gas to determine if it meets the standards. If it does, the treated waste gas is discharged. If the treated waste gas does not meet the standards, the controller activates a water pump to draw liquid from the purification cavity. The liquid is then passed through a storage box and sprayed out through an atomizing nozzle. This allows air molecules to combine with the atomized purification liquid, achieving rapid and efficient treatment of the substandard waste gas. This prevents the waste gas treatment system from stopping during operation and greatly improves the waste gas treatment efficiency.

[0021] Compared to existing waste gas purification systems, this waste gas purification system sets the waste gas treatment to intermittent processing. It does not require the waste gas to be debugged before treatment. The waste gas can be treated simply by passing it into the device, making it extremely convenient to use.

[0022] In existing technologies, when waste gas fails to meet standards, it may be due to a decrease in the concentration of the purification liquid, an excessively fast gas flow rate, or an excessively high local concentration of gas detected in the treated waste gas. When this occurs, the system must be shut down for investigation, making operation inconvenient. However, in this waste gas treatment system, if the gas fails to meet standards, it can only be due to a decrease in the concentration of the purification liquid. This is because the waste gas purification system performs quantitative purification, and the treated waste gas is uniformly mixed. Therefore, when the waste gas treatment fails to meet standards, simply increasing the concentration of the purification liquid is sufficient, making it extremely convenient to use. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 For the present invention Figure 1 A sectional view;

[0025] Figure 3 For the present invention Figure 2 Enlarged view of part A;

[0026] Figure 4 This is a schematic diagram of the movable plate of the present invention moving downwards to contact the pressure sensor;

[0027] Figure 5 This is a schematic diagram of the movable plate moving upwards according to the present invention.

[0028] In the diagram: 1. Purification tank; 2. Detection tank; 3. Controller; 4. Gas sensor; 5. Solenoid valve; 6. Lifting mechanism; 61. First motor; 62. Fixing sleeve; 63. Lever; 7. Bubble dividing mechanism; 71. Second motor; 72. Rotating dividing plate; 8. Stirring mechanism; 81. Third motor; 82. Rotating frame; 83. Water-dispensing plate; 9. Air guide pipe; 10. One-way air valve; 11. Atomizing mechanism; 111. Water pump; 112. Liquid storage box; 113. Atomizing nozzle; 12. Movable plate; 13. Variable cavity; 14. Exhaust pipe; 15. Pressure sensor. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. Example

[0031] Please see Figures 1 to 5 As shown, the exhaust gas purification system of the artificial stone production line in this embodiment includes a purification tank 1 and a detection tank 2. The detection tank 2 has a square cross-section. The inner cavity of the purification tank 1 is filled with purification liquid. The top of the inner cavity of the detection tank 2 is provided with a variable cavity 13. The inner cavity of the detection tank 2 is provided with a movable plate 12 that is sealed and movably connected to the inner wall of the detection tank 2. The variable cavity 13 is formed between the movable plate 12 and the top of the inner cavity of the detection tank 2. A gas sensor 4 is installed at the top of the inner cavity of the detection tank 2. A gas sensor 4 is provided in the inner cavity of the variable cavity 13. A gas guide pipe 9 is connected between the top of the purification tank 1 and the top of the detection tank 2. A one-way gas valve 10 is installed on the gas guide pipe 9. The purification liquid purifies the exhaust gas and then enters the variable cavity 13. The gas purified in the variable cavity 13 is detected by the gas sensor 4 and discharged after meeting the standards.

[0032] A controller 3 is installed on the outside of the detection tank 2. An exhaust pipe 14 is connected through the top of the detection tank 2. A solenoid valve 5 is installed on the exhaust pipe 14. A pressure sensor 15 is connected to the bottom of the inner cavity of the detection tank 2. A lifting mechanism 6 is installed at the bottom of the detection tank 2. The lifting mechanism 6 includes a first motor 61 connected to one side of the bottom of the detection tank 2, a fixed sleeve 62 set at the bottom of the inner cavity of the detection tank 2, and a lever 63 connected to the outside of the fixed sleeve 62. The output shaft of the first motor 61 is installed through the inside of the detection tank 2. The fixed sleeve 62 is connected to the outside of the output shaft of the first motor 61. The output end of the pressure sensor 15 and the output end of the gas sensor 4 are electrically connected to the input end of the controller 3. The output end of the controller 3 is electrically connected to the input end of the first motor 61 and the input end of the solenoid valve 5.

[0033] The exhaust gas is introduced into the purification tank 1 through a vent pipe on one side. The exhaust gas is then purified by a chemical reagent that absorbs styrene within the purification tank 1. After purification, the exhaust gas enters the variable cavity 13 at the top of the detection tank 2. As the gas is introduced, the movable plate 12 gradually moves downwards. Figure 4As shown, this causes the volume of the variable cavity 13 to increase. When the movable plate 12 moves to contact the pressure sensor 15, the pressure sensor 15 transmits a physical signal to the controller 3. The controller 3 controls the outside to stop supplying air into the purification cavity and controls the first motor 61 to reciprocate, driving its output shaft to rotate slightly in both directions for a period of time. Then, the gas sensor 4 detects the treated exhaust gas to check if it meets the standards. If it does, the gas sensor 4 transmits a signal to the controller 3, which controls the solenoid valve 5 to open, driving the movable plate 12 upward via the lever 63. Figure 5 As shown, the treated exhaust gas is discharged through exhaust pipe 14;

[0034] The controller 3 is also electrically connected to the external ventilation equipment. When the movable plate 12 moves to the position of the pressure sensor 15, the controller 3 controls the external ventilation equipment to stop ventilation.

[0035] During the reciprocating drive of the first motor 61 to rotate its output shaft slightly in both directions, when the first motor 61 rotates the drive lever 63 upward to drive the movable plate 12 upward, the air pressure in the variable cavity 13 will increase instantaneously. When the lever 63 rotates downward, the atmospheric pressure will drive the movable plate 12 downward. This reciprocating motion can accelerate the movement of air molecules in the variable cavity 13, allowing the air in the variable cavity 13 to mix quickly and evenly, thereby improving the detection accuracy of the gas sensor 4.

[0036] An atomizing mechanism 11 is connected between the purification tank 1 and the detection tank 2. The atomizing mechanism 11 includes a water pump 111 disposed between the purification tank 1 and the detection tank 2, a liquid storage box 112 disposed at the top of the inner cavity of the detection tank 2, and an atomizing nozzle 113 connected to the bottom of the liquid storage box 112. Water supply pipes are connected between the water pump 111 and the bottom of the purification tank 1, between the liquid storage box 112, and between the purification tank 1 and the detection tank 2.

[0037] If the treated exhaust gas does not meet the standards, the gas sensor 4 will transmit a signal to the controller 3, which will then perform the following steps:

[0038] The controller 3 controls the water pump 111 to draw liquid from the purification chamber, and after passing through the liquid storage box 112, the liquid is sprayed out into the atomizing nozzle 113, so that the atomized purification liquid floats in the variable cavity 13. When the first motor 61 drives the drive lever 63 to rotate back and forth slightly in both directions, the movement rate of air molecules and atomized purification liquid in the variable cavity 13 can be accelerated. This can accelerate the combination rate of air molecules and atomized purification liquid, so that the non-compliant waste gas can be treated quickly and efficiently through the atomized purification liquid, thereby preventing the waste gas treatment system from stopping during operation and greatly improving the waste gas treatment efficiency.

[0039] Compared to existing waste gas purification systems, this waste gas purification system sets the waste gas treatment to intermittent processing. It does not require the waste gas to be debugged before treatment. The waste gas can be treated simply by passing it into the device, making it extremely convenient to use.

[0040] Secondly, in the existing technology for treating waste gas, when the waste gas fails to meet the standards, it may be due to a decrease in the concentration of the purification liquid, an excessively fast gas introduction rate, or an excessively high local concentration of gas detected in the treated waste gas. When the waste gas fails to meet the standards, the system will be shut down for investigation, which is more inconvenient to use. However, in this waste gas treatment system, if the gas fails to meet the standards, it can only be due to a decrease in the concentration of the purification liquid. This is because this waste gas purification system is a quantitative purification system, and the treated waste gas is uniformly mixed. Therefore, when the waste gas treatment fails to meet the standards, it is only necessary to increase the concentration of the purification liquid, making it extremely convenient to use.

[0041] like Figure 1 and Figure 2 As shown, a bubble dividing mechanism 7 is installed on the purification tank 1. The bubble dividing mechanism 7 includes a second motor 71 connected to the bottom of the purification tank 1 and multiple sets of rotating dividing plates 72 arranged equidistantly from top to bottom inside the purification tank 1. The output shaft of the second motor 71 passes through the purification tank 1, and the rotating dividing plates 72 are connected to the outside of the output shaft of the second motor 71. Each set of rotating dividing plates 72 is arranged in a ring array. A stirring mechanism 8 is installed on the purification tank 1. The stirring mechanism 8 includes a third motor 81 connected to the top of the purification tank 1, a rotating frame 82 arranged inside the purification tank 1, and water-dispensing plates 83 connected to both sides inside the rotating frame 82. The output shaft of the third motor 81 passes through the purification tank 1 and is connected to the rotating frame 82.

[0042] During the waste gas treatment process, the third motor 81 is controlled to drive its output shaft to rotate counterclockwise, which in turn drives the rotating plate to rotate. The second motor 71 is controlled to drive its output shaft to rotate clockwise, which in turn drives the rotating frame 82 and the water-dispensing plate 83 to rotate. When the water-dispensing plate 83 rotates, it drives the purification liquid in the purification tank 1 to rotate. When the waste gas is introduced, it will float in the purification liquid in the form of bubbles. When the purification liquid is driven to rotate by the water-dispensing plate 83, it can drive the bubbles to rotate in the purification liquid, so that the bubbles can float in a spiral shape, prolonging the movement time of the bubbles in the water, thereby improving the purification effect of the purification liquid on the waste gas. When the rotating plate rotates, it can divide the floating bubbles, which can increase the contact area between the waste gas and the purification liquid, thus improving the purification effect of the waste gas.

[0043] Since the rotating plate rotates counterclockwise and the bubbles float upwards in a clockwise spiral, the counterclockwise rotating plate can divide the bubbles that are moving upwards in a clockwise spiral, which can greatly improve the dividing efficiency of the rotating dividing plate 72. This can further improve the effect of the rotating plate in dividing the bubbles, making the bubbles smaller and the purification liquid more effective in purifying the waste gas.

[0044] It should be noted that, in this document, the use of relational terms such as "first" and "second" is merely for distinguishing one entity or operation from another, and does not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An exhaust gas purification system for an artificial stone production line, characterized in that: The system includes a purification tank (1) and a detection tank (2). The purification tank (1) is filled with a purification liquid, and the top of the detection tank (2) is provided with a variable cavity (13). A gas sensor (4) is provided in the variable cavity (13). The purification liquid purifies the waste gas and then enters the variable cavity (13). The gas is then detected by the gas sensor (4) and discharged after meeting the emission standards. The inner cavity of the detection tank (2) is provided with a movable plate (12) that is movably connected to the inner wall of the detection tank (2) in a sealed manner. The variable cavity (13) is formed between the movable plate (12) and the top of the inner cavity of the detection tank (2). The gas sensor (4) is installed on the top of the inner cavity of the detection tank (2). A pressure sensor (15) is connected to the bottom of the inner cavity of the detection tank (2). A lifting mechanism (6) is installed at the bottom of the detection tank (2). The lifting mechanism (6) includes a first motor (61) connected to one side of the bottom of the detection tank (2), a fixed sleeve (62) set at the bottom of the inner cavity of the detection tank (2), and a lever (63) connected to the outside of the fixed sleeve (62). The output shaft of the first motor (61) is installed inside the detection tank (2). The fixed sleeve (62) is connected to the outside of the output shaft of the first motor (61). The output end of the pressure sensor (15) and the output end of the gas sensor (4) are electrically connected to the input end of the controller (3). The output end of the controller (3) is electrically connected to the input end of the first motor (61) and the input end of the solenoid valve (5).

2. The exhaust gas purification system for artificial stone production lines according to claim 1, characterized in that: A controller (3) is installed on the outside of the detection tank (2), and an exhaust pipe (14) is connected through the top of the detection tank (2). A solenoid valve (5) is installed on the exhaust pipe (14).

3. The exhaust gas purification system for artificial stone production lines according to claim 1, characterized in that: The purification tank (1) is equipped with a bubble splitting mechanism (7). The bubble splitting mechanism (7) includes a second motor (71) connected to the bottom of the purification tank (1) and multiple sets of rotating splitting plates (72) arranged equidistantly from top to bottom inside the purification tank (1). The output shaft of the second motor (71) is arranged through the purification tank (1). The rotating splitting plates (72) are connected to the outside of the output shaft of the second motor (71), and each set of rotating splitting plates (72) is arranged in a ring array.

4. The exhaust gas purification system for artificial stone production lines according to claim 1, characterized in that: The purification tank (1) is equipped with a stirring mechanism (8). The stirring mechanism (8) includes a third motor (81) connected to the top of the purification tank (1), a rotating frame (82) set inside the purification tank (1), and water-dispensing plates (83) connected to both sides inside the rotating frame (82). The output shaft of the third motor (81) passes through the purification tank (1) and is connected to the rotating frame (82).

5. The exhaust gas purification system for artificial stone production lines according to claim 1, characterized in that: A gas guide pipe (9) is connected between the top of the purification tank (1) and the top of the detection tank (2), and a one-way gas valve (10) is installed on the gas guide pipe (9).

6. The exhaust gas purification system for artificial stone production lines according to claim 1, characterized in that: An atomizing mechanism (11) is connected between the purification tank (1) and the detection tank (2). The atomizing mechanism (11) includes a water pump (111) disposed between the purification tank (1) and the detection tank (2), a liquid storage box (112) disposed at the top of the inner cavity of the detection tank (2), and an atomizing nozzle (113) connected to the bottom of the liquid storage box (112). Water supply pipes are connected between the water pump (111) and the bottom of the purification tank (1), between the liquid storage box (112), and between the purification tank (1) and the detection tank (2).

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