Silica calcination exhaust device

Abstract

The utility model provides a silica calcination exhaust device, and belongs to the technical field of silica calcination exhaust equipment. The silica calcination exhaust device comprises a water tank, a coil pipe, a filtering mechanism, a dry desulfurizer, a first induced draft fan and a heavy desulfurization mechanism, the coil pipe is arranged in the water tank, when the silica calcination exhaust device is used, a gas sensor transmits a signal to a control main end, the control main end controls all electromagnetic valves to be closed, continuous injection of flue gas is stopped, and the filter mechanism is used for filtering the flue gas. According to the silica calcination exhaust device, the gas sensor is used for monitoring the flue gas in real time, the flue gas which is not completely desulfurized is effectively prevented from being exhausted, and it is ensured that the environment is not polluted; and the water tank and the coil pipe are used for recovering heat in the smoke, so that energy waste is effectively prevented, and better use experience is brought to a user.

Description

Technical Field

[0001] The present application relates to the technical field of silica calcining exhaust equipment, and in particular to a silica calcining exhaust device. Background Art

[0002] The flue gas discharged after silica calcination often contains sulfur. In order to prevent sulfur from polluting the air, a desulfurizer is often used to desulfurize the flue gas. However, the desulfurizer has a cycle for sulfur treatment, and the desulfurizer needs to be maintained after the time is exceeded. When the desulfurizer's sulfur treatment does not meet the requirements, the sulfur concentration is greater than the emission requirements, which will also cause some flue gas to pollute the environment. In addition, the flue gas contains a lot of heat, and direct discharge will cause energy waste and bring a bad user experience. Utility Model Content

[0003] In order to make up for the above shortcomings, the present application provides a silica calcination exhaust device, which aims to improve the situation when the desulfurizer does not meet the sulfur treatment requirements, making the sulfur concentration greater than the emission requirements, which will also cause part of the flue gas to pollute the environment. In addition, the flue gas contains a large amount of heat, and direct discharge will cause energy waste.

[0004] This application is implemented as follows:

[0005] The present application provides a silica calcining exhaust device, comprising a water tank, a coil, a filter mechanism, a dry desulfurizer, a first induced draft fan, and a heavy desulfurization mechanism, wherein the coil is arranged in the water tank, and one end of the coil and the filter mechanism are connected together through a first air guide pipe;

[0006] The filtering mechanism is used to filter dust in the flue gas. The filtering mechanism and the dry desulfurizer are connected together through a second air duct, and the dry desulfurizer and the first induced draft fan are connected together through a third air duct. The heavy desulfurization mechanism is arranged on the second air duct and the third air duct, and an electromagnetic valve is provided on the third air duct.

[0007] In one embodiment of the present application, the filtering mechanism includes a first Y-shaped tube, a filter box, an activated carbon plate, a second Y-shaped tube and a gas flow sensor, wherein the first Y-shaped tube and the second Y-shaped tube are both fixedly mounted on the filter box;

[0008] One end of the first air duct is fixed to the upper end of the first Y-shaped tube, the activated carbon plate is slidably arranged in the filter box, the lower end of the second Y-shaped tube is fixed to one end of the second air duct, and the gas flow sensor is fixedly installed on the second Y-shaped tube.

[0009] In one embodiment of the present application, solenoid valves are provided on both branches of the first Y-shaped tube, and solenoid valves are also provided on both branches of the second Y-shaped tube.

[0010] In one embodiment of the present application, filter plates are fixedly installed in both branches of the first Y-shaped tube.

[0011] In one embodiment of the present application, the heavy desulfurization mechanism includes a gas sensor and a second induced draft fan, and a fourth air duct is provided between the third air duct and the second induced draft fan;

[0012] The gas sensor is arranged on the third air duct, a fifth air duct is arranged between the second induced draft fan and the second air duct, and a solenoid valve is arranged on the fourth air duct.

[0013] In one embodiment of the present application, a one-way valve is provided on the fifth air duct.

[0014] The beneficial effects of the present application are as follows: the present application obtains a silica calcining exhaust device through the above-mentioned design. When in use, one end of the coil is connected to the exhaust pipe of the calcining furnace, the first induced draft fan works to drive the flue gas to flow, and the flue gas will exchange heat with the water in the water tank during the process of passing through the water tank. The water in the water tank is heated for other uses. The dust in the flue gas is filtered out by the activated carbon plate in the filter box during the process of passing through the filter box. The purified flue gas then enters the dry desulfurizer to be desulfurized. The desulfurized flue gas is finally discharged by the first induced draft fan. When the gas sensor senses that the sulfur concentration in the flue gas reaches the set maximum value, the gas sensor transmits a signal to the solenoid valve on the third air duct, the second induced draft fan and the solenoid valve on the fourth air duct. The solenoid valve on the third air duct is closed, and the fourth The solenoid valve on the air duct is opened, and the second induced draft fan works to inject the flue gas that has not been completely desulfurized into the dry desulfurizer through the fourth air duct and the fifth air duct. When the gas sensor senses that the sulfur concentration in the flue gas is still greater than the set maximum value, the gas sensor transmits a signal to the control terminal. The control terminal controls all the solenoid valves to be closed and stops the continued injection of flue gas. The staff is then reminded to maintain the dry desulfurizer to effectively prevent the flue gas that has not been completely desulfurized from being discharged. The silica calcination exhaust device uses a gas sensor to monitor the flue gas in real time, effectively preventing the flue gas that has not been completely desulfurized from being discharged, ensuring that the environment will not be polluted. In addition, the water tank and coil are used to recover the heat in the flue gas, effectively preventing energy waste and bringing a better user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the following is a brief introduction to the drawings required for use in the implementation methods. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a silica calcining exhaust device provided in an embodiment of the present application;

[0017] Figure 2 A diagram showing the relationship between the coil, the first air guide tube, and the first Y-shaped tube provided in an embodiment of the present application;

[0018] Figure 3 A cross-sectional view of a filter box provided in accordance with an embodiment of the present application;

[0019] Figure 4 Provided for the implementation of this application Figure 3 Magnified view of area A in center.

[0020] In the figure: 110-water tank; 120-coil; 130-first air duct; 140-filter mechanism; 141-first Y-tube; 142-filter box; 143-activated carbon plate; 144-second Y-tube; 145-gas flow sensor; 150-second air duct; 160-dry desulfurizer; 170-third air duct; 180-first induced draft fan; 190-solenoid valve; 191-heavy desulfurization mechanism; 1911-fourth air duct; 1912-gas sensor; 1913-fifth air duct; 1914-second induced draft fan; 1915-check valve. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0022] Example

[0023] See also Figures 1-4The present application provides a technical solution: a silica calcining exhaust device, comprising a water tank 110, a coil 120, a filter mechanism 140, a dry desulfurizer 160, a first induced draft fan 180, and a heavy desulfurization mechanism 191. The coil 120 is disposed in the water tank 110, and one end of the coil 120 and the filter mechanism 140 are connected together via a first air guide pipe 130.

[0024] The filter mechanism 140 is configured to filter dust in the flue gas. The filter mechanism 140 includes a first Y-shaped tube 141, a filter box 142, an activated carbon plate 143, a second Y-shaped tube 144, and a gas flow sensor 145. The first Y-shaped tube 141 and the second Y-shaped tube 144 are both fixedly mounted on the filter box 142.

[0025] One end of the first air guide pipe 130 is fixed to the upper end of the first Y-shaped tube 141, the activated carbon plate 143 is slidably arranged in the filter box 142, the lower end of the second Y-shaped tube 144 and one end of the second air guide pipe 150 are fixed together, the gas flow sensor 145 is fixedly installed on the second Y-shaped tube 144, and the two processing chambers of the filter box 142 can clean or replace the blocked activated carbon plate 143 without stopping the machine. The two branches of the first Y-shaped tube 141 are both provided with a solenoid valve 190, and the two branches of the second Y-shaped tube 144 are also provided with a solenoid valve 190. The arrangement of the solenoid valve 190 facilitates the control of the flow direction of the flue gas. The two branches of the first Y-shaped tube 141 are both fixedly installed with a filter screen plate, which increases the cleaning or replacement cycle of the activated carbon plate 143.

[0026] The filtering mechanism 140 and the dry desulfurizer 160 are connected together via a second air duct 150. The dry desulfurizer 160 and the first induced draft fan 180 are connected together via a third air duct 170. A heavy desulfurization mechanism 191 is disposed on the second air duct 150 and the third air duct 170. The third air duct 170 is provided with a solenoid valve 190. The heavy desulfurization mechanism 191 includes a gas sensor 1912 and a second induced draft fan 1914. A fourth air duct 1911 is provided between the third air duct 170 and the second induced draft fan 1914.

[0027] The gas sensor 1912 is arranged on the third air duct 170, and a fifth air duct 1913 is arranged between the second induced draft fan 1914 and the second air duct 150. The fourth air duct 1911 is provided with an electromagnetic valve 190. The arrangement of the gas sensor 1912 and the second induced draft fan 1914 facilitates the introduction of unclean desulfurized flue gas into the coil 120. A one-way valve 1915 is arranged on the fifth air duct 1913. The arrangement of the one-way valve 1915 prevents the flue gas from entering the fifth air duct 1913 from the second air duct 150.

[0028] Specifically, the working principle of the silica calcining exhaust device is as follows: when in use, one end of the coil 120 is connected to the exhaust pipe of the calcining furnace, and the first induced draft fan 180 is in operation to drive the flue gas to flow. The flue gas will exchange heat with the water in the water tank 110 in the process of passing through the water tank 110, and the water in the water tank 110 is heated for other uses. The dust in the flue gas is filtered out by the activated carbon plate 143 in the filter box 142 in the process of passing through the filter box 142, and then the purified flue gas enters the dry desulfurizer 160 for desulfurization. The desulfurized flue gas is finally discharged by the first induced draft fan 180. When the gas sensor 1912 senses that the sulfur concentration in the flue gas reaches the set maximum value, the gas sensor 1912 transmits a signal to the solenoid valve 190 on the third air duct 170, the second induced draft fan 1914 and the solenoid valve 190 on the fourth air duct 1911. The solenoid valve 190 on the third air duct 170 is closed, and the fourth The solenoid valve 190 on the air duct 1911 is opened, and the second induced draft fan 1914 works to inject the flue gas that has not been completely desulfurized into the dry desulfurizer 160 through the fourth air duct 1911 and the fifth air duct 1913. When the gas sensor 1912 senses that the sulfur concentration in the flue gas is still greater than the set maximum value, the gas sensor 1912 transmits a signal to the control terminal. The control terminal controls all the solenoid valves 190 to be closed and stops the continued injection of flue gas. The staff is then reminded to maintain the dry desulfurizer 160 to effectively prevent the flue gas that has not been completely desulfurized from being discharged. The silica calcination exhaust device uses the gas sensor 1912 to monitor the flue gas in real time, effectively preventing the flue gas that has not been completely desulfurized from being discharged, and ensuring that the environment will not be polluted. In addition, the water tank 110 and the coil 120 are used to recover the heat in the flue gas, effectively preventing energy waste and bringing a better user experience.

[0029] It should be noted that the specific models and specifications of the gas flow sensor 145, dry desulfurizer 160, first induced draft fan 180, solenoid valve 190, gas sensor 1912 and second induced draft fan 1914 need to be selected and determined based on the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0030] The power supply and principles of the gas flow sensor 145, dry desulfurizer 160, first induced draft fan 180, solenoid valve 190, gas sensor 1912 and second induced draft fan 1914 are clear to those skilled in the art and will not be described in detail here.

[0031] The foregoing is merely an embodiment of the present application and is not intended to limit the scope of protection of the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined or explained in subsequent figures.

Claims

1. A silica calcining exhaust device, characterized in that: The system comprises a water tank (110), a coil (120), a filter mechanism (140), a dry desulfurizer (160), a first induced draft fan (180), and a heavy desulfurization mechanism (191); the coil (120) is arranged in the water tank (110); one end of the coil (120) and the filter mechanism (140) are connected together via a first air guide pipe (130); The filter mechanism (140) is used to filter dust in the flue gas. The filter mechanism (140) and the dry desulfurizer (160) are connected together through a second air duct (150). The dry desulfurizer (160) and the first induced draft fan (180) are connected together through a third air duct (170). The heavy desulfurization mechanism (191) is arranged on the second air duct (150) and the third air duct (170). The third air duct (170) is provided with a solenoid valve (190).

2. A silica calcining exhaust device according to claim 1, characterized in that: The filtering mechanism (140) comprises a first Y-shaped tube (141), a filter box (142), an activated carbon plate (143), a second Y-shaped tube (144) and a gas flow sensor (145), wherein the first Y-shaped tube (141) and the second Y-shaped tube (144) are both fixedly mounted on the filter box (142); One end of the first air guide tube (130) and the upper end of the first Y-shaped tube (141) are fixed together, the activated carbon plate (143) is slidably arranged in the filter box (142), the lower end of the second Y-shaped tube (144) and one end of the second air guide tube (150) are fixed together, and the gas flow sensor (145) is fixedly installed on the second Y-shaped tube (144).

3. A silica calcining exhaust device according to claim 2, characterized in that: Both branches of the first Y-shaped tube (141) are provided with a solenoid valve (190), and both branches of the second Y-shaped tube (144) are also provided with a solenoid valve (190).

4. A silica calcining exhaust device according to claim 2, characterized in that: Filter plates are fixedly installed in both branches of the first Y-shaped tube (141).

5. The silica calcining exhaust device according to claim 1, characterized in that: The heavy desulfurization mechanism (191) includes a gas sensor (1912) and a second induced draft fan (1914); a fourth air duct (1911) is provided between the third air duct (170) and the second induced draft fan (1914); The gas sensor (1912) is arranged on the third air duct (170), a fifth air duct (1913) is arranged between the second induced draft fan (1914) and the second air duct (150), and a solenoid valve (190) is arranged on the fourth air duct (1911).

6. The silica calcining exhaust device according to claim 5, characterized in that: The fifth air guide tube (1913) is provided with a one-way valve (1915).

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