Hydrogen cyanide gas concentration detection ventilation device for sodium cyanide warehouse

Abstract

The utility model relates to the technical field of mine intelligent equipment, in particular to a sodium cyanide warehouse hydrogen cyanide gas concentration detection ventilation device which comprises an upper computer, a gas controller, a gas sensor and a first axial flow fan, and the gas sensor is connected into a warehouse through a lifting mechanism. The automatic detection of the concentration of the hydrogen cyanide gas in the warehouse can be realized, when the concentration exceeds the standard, air is automatically exhausted, air can be directionally drained to the gas circulating pipe through the drainage fan, whether the concentration of the gas exceeds the standard or not is detected through the gas sensor, and the gas sensor moves up and down through the lifting mechanism; the height range of the gas concentration exceeding the standard can be detected, the reference of the safe height range is provided, and in conclusion, the use safety of the sodium cyanide warehouse is remarkably improved, and the probability of safety accidents caused by toxic gas is reduced.

Description

Technical Field

[0001] This utility model relates to the field of intelligent mining equipment technology, specifically to a ventilation device for detecting hydrogen cyanide gas concentration in a sodium cyanide warehouse. Background Technology

[0002] Sodium cyanide is a white, deliquescent crystal, soluble in water, and decomposes immediately upon contact with acid, releasing hydrogen cyanide gas, which is highly toxic. According to the "Integrated Emission Standard for Air Pollutants," the maximum emission concentration of hydrogen cyanide contained in sodium cyanide is 1.9 mg / m³, or 1.79 PPM. The maximum permissible concentration in the air is 0.3 mg / m³, or 0.27 PPM. Inhalation of hydrogen cyanide can inhibit respiratory enzymes, causing intracellular asphyxiation. The lethal dose of hydrogen cyanide is 1 mg / kg (body weight), and the lethal blood concentration of sodium cyanide is 1 mg / 100 ml.

[0003] Normally, the fans are manually turned on before each entry into the sodium cyanide warehouse to exhaust the air. However, in practice, the ventilation system is not turned on and off at a fixed time and is not interlocked with the hydrogen cyanide concentration monitoring system, which poses a great safety hazard. Summary of the Invention

[0004] To address the existing technical problems described in the background section, this invention discloses a ventilation device for detecting hydrogen cyanide gas concentration in a sodium cyanide warehouse.

[0005] To achieve the above objectives, the technical solution of this invention is as follows:

[0006] A ventilation device for detecting hydrogen cyanide gas concentration in a sodium cyanide warehouse includes a host computer, a gas controller, gas sensors, and a first axial flow fan. Several first axial flow fans for discharging gas are installed on the side wall of the warehouse. The host computer is electrically connected to a power source and to the gas controller via wires. Several gas sensors are installed inside the warehouse and are electrically connected to the gas controller via wires. The gas controller is also electrically connected to a first alarm. The gas sensors are connected to the warehouse via a lifting mechanism.

[0007] Preferably, the warehouse is equipped with a suspended ceiling panel, which forms an isolation space with the top of the warehouse. Several horizontally arranged gas flow pipes are provided above the suspended ceiling panel. One end of the gas flow pipe penetrates the side wall of the warehouse and a second axial flow fan is provided on the inner side of the pipe wall. The gas flow pipe is connected to the space inside the warehouse below the suspended ceiling panel through a connecting pipe located at the bottom.

[0008] Preferably, the top of the lifting mechanism is connected to the ceiling panel, and the connecting pipe is used in conjunction with the lifting mechanism.

[0009] Preferably, the lifting mechanism includes a first mounting plate and a second mounting plate arranged vertically opposite each other. A lead screw is connected between the middle of the opposite surfaces of the first and second mounting plates. Guide rods are connected between the opposite surfaces of the first and second mounting plates on both sides of the lead screw. A movable seat is screwed onto the lead screw. The two ends of the movable seat are slidably connected to the corresponding guide rods. The gas sensor is fixedly mounted on the outer surface of the movable seat. A drive motor is mounted on the lower surface of the second mounting plate. The output shaft end of the drive motor is fixedly connected to the bottom end of the lead screw and is used to drive the lead screw to rotate.

[0010] Preferably, the second mounting plate has mounting holes on both sides of the lead screw that pass through the upper and lower end faces. A flow-guiding fan is installed in each of the mounting holes. The mounting holes are respectively opposite to the lower port of the upper connecting pipe. The drive motor and the flow-guiding fan are electrically connected to the gas controller.

[0011] Preferably, the host computer is connected to a control panel via a wire, the control panel is equipped with a gas controller start button, and the first alarm is located in the control room outside the warehouse.

[0012] Preferably, the gas sensor is a hydrogen cyanide gas sensor, which integrates a second alarm located inside the warehouse.

[0013] Preferably, the gas controller is equipped with a timing module, and is electrically connected to a preset fan control module through the timing module. The fan control module is configured to control the first axial flow fan, the second axial flow fan, and the induced draft fan.

[0014] The beneficial effects of this novel ventilation device for detecting hydrogen cyanide gas concentration in a sodium cyanide warehouse are as follows:

[0015] This new invention enables automated detection of hydrogen cyanide gas concentration in warehouses. When the concentration exceeds the standard, it automatically ventilates the warehouse. It can also direct airflow to the gas circulation pipe via a duct fan. A gas sensor detects whether the gas concentration exceeds the standard. The gas sensor moves up and down via a lifting mechanism to detect the height range of the gas concentration exceeding the standard and provides a reference for the safe height range. In summary, this new invention significantly improves the safety of sodium cyanide warehouses and reduces the probability of safety accidents caused by toxic gases. Attached Figure Description

[0016] Figure 1 : Schematic diagram of the main structure of this novel invention.

[0017] 1. Ceiling panel; 2. First mounting plate; 3. Second mounting plate; 4. Lead screw; 5. Guide rod; 6. Movable seat; 7. Gas sensor; 8. Drainage fan; 9. Drive motor; 10. Connecting pipe; 11. Gas flow pipe; 12. Second axial flow fan. Detailed Implementation

[0018] The following description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0019] Example 1

[0020] This invention relates to a ventilation device for detecting hydrogen cyanide gas concentration in a sodium cyanide warehouse, such as... Figure 1 As shown, the system includes a host computer (not shown in the figure), a gas controller (not shown in the figure), gas sensors, and a first axial flow fan (not shown in the figure). Several first axial flow fans for discharging gas are installed on the side wall of the warehouse (not shown in the figure). The host computer is electrically connected to a power source and to the gas controller via wires. Several gas sensors are installed inside the warehouse. The gas sensors are electrically connected to the gas controller via wires. The gas controller is also electrically connected to a first alarm. The gas sensors are connected to the warehouse via a lifting mechanism.

[0021] In this embodiment, when the gas sensor detects that the hydrogen cyanide gas concentration exceeds the set value, the gas controller activates the first axial flow fan to exhaust the gas, ensuring that the toxic gas in the warehouse can quickly drop below the set concentration value. The gas sensor is connected to the warehouse via a lifting mechanism, allowing it to move up and down to detect the concentration of the toxic gas at different heights. This enables the determination of a relatively safe height range within the warehouse space (HCN is lighter than air), providing a comprehensive understanding of the toxic gas distribution. The gas controller can be a DR-ZJ108 type, and the gas sensor can be a GQ-DR600 type point gas detector; this combination is existing technology.

[0022] Example 2

[0023] Based on Example 1, this example discloses: Figure 1 As shown, the warehouse is equipped with a ceiling panel 1 at the top, which forms an isolation space between the ceiling panel 1 and the top of the warehouse. Several horizontally arranged gas flow pipes 11 are provided above the ceiling panel 1. One end of the gas flow pipe 11 penetrates the side wall of the warehouse and a second axial flow fan 12 is provided inside the pipe wall. The gas flow pipe 11 is connected to the space inside the warehouse below the ceiling panel 1 through a connecting pipe 10 located at the bottom.

[0024] like Figure 1 As shown, the top of the lifting mechanism is connected to the ceiling panel 1, and the connecting pipe 10 is used in conjunction with the lifting mechanism.

[0025] In this embodiment, a second axial flow fan is provided to direct airflow, and a gas sensor is installed on the flow path of the connecting pipe to detect the concentration of hydrogen cyanide in the air passing through.

[0026] Example 3

[0027] Based on Embodiment 2, this embodiment discloses: Figure 1 As shown, the lifting mechanism includes a first mounting plate 2 and a second mounting plate 3 arranged vertically opposite each other. A lead screw 4 is connected between the middle of the opposite surfaces of the first mounting plate 2 and the second mounting plate 3. Guide rods 5 are connected between the opposite surfaces of the first mounting plate 2 and the second mounting plate 3 on both sides of the lead screw 4. A movable seat 6 is screwed onto the lead screw 4. The two ends of the movable seat 6 are slidably connected to the corresponding guide rods 5. The gas sensor 7 is fixedly mounted on the outer surface of the movable seat 6. A drive motor 9 is mounted on the lower surface of the second mounting plate 3. The output shaft end of the drive motor 9 is fixedly connected to the bottom end of the lead screw 4 and is used to drive the lead screw 4 to rotate.

[0028] like Figure 1 As shown, the second mounting plate 3 is provided with mounting holes on both sides of the lead screw 4, which pass through the upper and lower end faces. A flow-guiding fan 8 is installed in each of the mounting holes. The mounting holes are respectively opposite to the lower port of the upper connecting pipe 10. The drive motor 9 and the flow-guiding fan 8 are electrically connected to the gas controller.

[0029] In this embodiment, air is guided upward into the connecting pipe 10 by a duct fan, and the concentration of hydrogen cyanide gas is detected by a gas sensor. This implementation method can be started during normal duty, and the duct is used to monitor whether the hydrogen cyanide gas exceeds the standard, while promoting the exhaust of gas at the same time.

[0030] Example 4

[0031] Based on Embodiment 3, this embodiment discloses: Figure 1 As shown, Figure 1 As shown, the host computer is connected to a control panel (not shown in the figure) via wires. The control panel is equipped with a gas controller start button, and the first alarm is located in the control room outside the warehouse.

[0032] like Figure 1As shown, the gas sensor is a hydrogen cyanide gas sensor, which integrates a second alarm located inside the warehouse. The hydrogen cyanide gas sensor with integrated second alarm is a conventional hydrogen cyanide gas detection alarm, a safety device used to detect hydrogen cyanide gas concentration and issue an alarm signal. It consists of a hydrogen cyanide gas alarm host and a gas detector. The alarm host is installed in a manned location, and when the gas concentration exceeds the standard, it will issue an audible and visual alarm to remind the user to take safety measures.

[0033] Example 5

[0034] Based on Example 4, this example discloses: Figure 1 As shown, the gas controller is equipped with a timing module, which is electrically connected to a preset fan control module. The fan control module is configured to control the first axial flow fan, the second axial flow fan, and the exhaust fan. This configuration is intended to enable the timed activation of the first axial flow fan, the second axial flow fan, and the exhaust fan, ensuring the safe operation of the warehouse environment.

Claims

1. A sodium cyanide storage hydrogen cyanide gas concentration detection ventilation device characterized by: The warehouse is provided with a plurality of first axial flow fans for discharging gas outside on the side wall of the warehouse, a host computer is electrically connected with a power supply and electrically connected with a gas controller through wires, a plurality of gas sensors are installed in the warehouse, the gas sensors are electrically connected with the gas controller through wires, the gas controller is further electrically connected with a first alarm, and the gas sensors are connected to the warehouse through a lifting mechanism.

2. A sodium cyanide storage hydrogen cyanide gas concentration detection ventilation device as claimed in claim 1, characterized in that: A ceiling plate is arranged at the top of the warehouse, and an isolation space is formed between the ceiling plate and the top end of the warehouse, a plurality of horizontally arranged gas flow pipes are arranged above the ceiling plate, one end of the gas flow pipe penetrates the side wall of the warehouse and is provided with a second axial flow fan on the inner side of the pipe wall, and the gas flow pipe is communicated with the space in the warehouse below the ceiling plate through a connecting pipeline arranged at the bottom.

3. A sodium cyanide storage hydrogen cyanide gas concentration detection ventilation apparatus as defined in claim 2, characterized in that: The top of the lifting mechanism is connected with the ceiling plate, and the connecting pipeline is used in cooperation with the lifting mechanism.

4. A sodium cyanide storage hydrogen cyanide gas concentration detection ventilation apparatus as defined in claim 3, characterized in that: The lifting mechanism comprises first and second mounting plates arranged opposite to each other, a lead screw is connected between the middle portions of the opposite surfaces of the first and second mounting plates, guide rods are connected between the opposite surfaces of the first and second mounting plates on the two sides of the lead screw, a moving seat is screwed on the lead screw, the two ends of the moving seat are respectively slidably connected with the corresponding guide rods, the gas sensor is fixedly arranged on the outer surface of the moving seat, a drive motor is arranged on the lower surface of the second mounting plate, and the output shaft end of the drive motor is fixedly connected with the bottom end of the lead screw and used to drive the lead screw to rotate.

5. A sodium cyanide storage hydrogen cyanide gas concentration detection ventilation apparatus as defined in claim 4, characterized in that: The second mounting plate is provided with mounting holes penetrating the upper and lower surfaces on the two sides of the lead screw, drainage fans are respectively arranged in the mounting holes, and the mounting holes are respectively opposite to the lower end ports of the connecting pipelines above.

6. A sodium cyanide storage hydrogen cyanide gas concentration detection ventilation apparatus as defined in claim 5, characterized in that: The host computer is connected with a control panel through wires, the control panel is provided with a gas controller start button, and the first alarm is arranged in a control room outside the warehouse.

7. A sodium cyanide repository hydrogen cyanide gas concentration detection ventilation apparatus as defined in claim 6, characterized in that: The gas sensor is a hydrogen cyanide gas sensor, the hydrogen cyanide gas sensor is integrated with a second alarm, and the second alarm is arranged inside the warehouse.

8. A sodium cyanide repository hydrogen cyanide gas concentration detection ventilation apparatus as defined in claim 7, characterized by: The gas controller is provided with a timing module and electrically connected with a preset fan control module through the timing module, and the fan control module is configured to control the first axial flow fan, the second axial flow fan and the drainage fan.

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