Furnace flue gas particulate matter concentration monitoring device

Abstract

The utility model relates to the technical field of kilns, in particular to a kiln flue gas particulate matter concentration monitoring device which comprises a monitoring device body and a filter screen, a shell is installed at the bottom of the monitoring device body, a gas outlet pipe is installed on one side of the monitoring device body, the gas outlet pipe extends into the shell from the side face of the shell, and the filter screen is installed on the shell. An inserting hole is formed in the side face of the shell, the filter screen is inserted into the shell through the inserting hole, a fixing sleeve is installed at the bottom of the shell, a heat exchange pipe is installed in the fixing sleeve, and a water inlet pipe is installed on the side face of the fixing sleeve in an embedded mode. The utility model has the advantages that the flue gas temperature is reduced, cold water is preheated, the environment is protected, and the waste is reduced.

Description

Technical Field

[0001] This utility model relates to the field of furnace and kiln technology, specifically to a device for monitoring the concentration of particulate matter in furnace and kiln flue gas. Background Technology

[0002] A furnace is a device used to heat, melt, or sinter materials. It typically consists of a closed container and a heating element. Furnaces are used in various industrial and manufacturing processes, such as metallurgy, ceramics production, and glass processing. Their working principle is to heat materials to the required temperature, causing chemical or physical changes. Furnaces can employ different heating methods depending on the needs, such as resistance heating, induction heating, and gas combustion. Furnaces are widely used in materials processing, laboratory research, and various manufacturing industries, and are one of the most important heating devices. A furnace flue gas particulate matter concentration monitoring device is typically used to detect the concentration of particulate matter generated during combustion. It helps monitor solid particulate matter in flue gas, such as dust and smoke, to ensure that environmental emissions meet relevant standards. The monitoring and measurement of particulate matter concentration in furnace flue gas is usually achieved through sensors or instruments.

[0003] The temperature of flue gas from furnaces and kilns is usually high because high-temperature industrial production takes place inside the furnaces and kilns, such as smelting, roasting, sintering, melting, and heating. The heat generated by fuel combustion or electrical energy conversion brings the materials or workpieces to the required temperature. When the generated high-temperature flue gas is discharged, it still maintains a high temperature. If the monitoring device directly discharges the flue gas after analysis, it will not only pollute the surrounding environment, but also waste the heat source of the flue gas. Utility Model Content

[0004] The purpose of this invention is to provide a furnace flue gas particulate matter concentration monitoring device that has the advantages of reducing flue gas temperature while preheating cold water, protecting the environment, and reducing waste. It solves the problem that the furnace flue gas particulate matter concentration monitoring device directly discharges the analyzed flue gas, which easily pollutes the environment and wastes heat sources.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a furnace flue gas particulate matter concentration monitoring device, comprising a monitoring device body and a filter screen. A housing is installed at the bottom of the monitoring device body, and an exhaust pipe is installed on one side of the monitoring device body. The exhaust pipe extends into the housing from the side of the housing. An insertion hole is provided on the side of the housing, and the filter screen is inserted into the housing from the insertion hole. A fixing sleeve is installed at the bottom of the housing, and a heat exchange tube is installed inside the fixing sleeve. A water inlet pipe is embedded in the side of the fixing sleeve.

[0006] When using the particulate matter concentration monitoring device for furnace flue gas in this technical solution, the mounting bracket is fixed to the load-bearing structure using bolts or other tools through the fixing holes of the mounting bracket. The mounting bracket fixes the main body of the monitoring device. The furnace exhaust pipe is connected to the air inlet pipe on the side of the main body of the monitoring device. The monitoring data range of the main body of the monitoring device is set using the controller. The flue gas discharged from the furnace enters the main body of the monitoring device through the air inlet pipe. The main body of the monitoring device analyzes the composition of the flue gas through the internal analysis mechanism. The main body of the monitoring device delivers the analyzed flue gas to the inside of the shell through the air outlet pipe. The filter screen inside the shell adsorbs impurities in the flue gas. The flue gas inside the shell enters the heat exchange tube inside the fixed sleeve through the connecting pipe. Cold water enters the fixed sleeve through the water inlet pipe. The high-temperature flue gas inside the heat exchange tube heats the cold water inside the fixed sleeve. The flue gas inside the heat exchange tube is cooled and discharged through the exhaust pipe. The water that has been heated inside the fixed sleeve is discharged through the water outlet pipe.

[0007] Preferably, a controller is installed on the rear side of the monitoring device body, and a door is hinged to the rear side of the monitoring device body on one side of the controller. The controller is used to control the operating parameters and data acquisition of the monitoring device body. The door facilitates the maintenance and repair of the internal equipment by the operator. At the same time, the door can be opened when necessary to replace or clean the internal components of the monitoring device body, ensuring the normal operation of the monitoring device body.

[0008] Preferably, an air inlet pipe is installed on the side of the monitoring device body opposite to the exhaust pipe. The design of the air inlet pipe ensures that the flue gas can smoothly enter the interior of the monitoring device body, and its position and structure cooperate with the exhaust pipe to form a smooth channel for the flue gas, thereby improving monitoring efficiency.

[0009] Preferably, a fixing groove is formed on the inner side of the housing, and the side of the filter screen inserted into the housing is inserted into the fixing groove. The fixing groove provides stable support and accurate positioning for the filter screen, ensuring that the filter screen will not shift during flue gas flow, thereby ensuring the stability of the filtration effect.

[0010] Preferably, a connecting pipe is installed at the bottom of the shell, with the bottom of the connecting pipe extending from the top of the fixing sleeve and fixedly connected to the heat exchange tube. An exhaust pipe is embedded at the bottom of the shell, with the top of the exhaust pipe fixedly connected to the heat exchange tube. The design of the connecting pipe and the exhaust pipe enables communication between the heat exchange tube and the interior of the shell, ensuring that the flue gas can fully release heat when passing through the heat exchange tube, thereby improving the waste heat recovery efficiency.

[0011] Preferably, an observation window is embedded in the rear side of the fixing sleeve. The water level inside the fixing sleeve can be observed through the observation window.

[0012] Preferably, an outlet pipe is embedded in the side of the fixing sleeve below the water inlet pipe. Water inside the fixing sleeve can be discharged from the outlet pipe.

[0013] Preferably, a mounting bracket is welded to the front side of the monitoring device body, and the mounting bracket has mounting holes arranged in a rectangular array. Using bolts or other tools, the mounting bracket is fixed to the load-bearing structure through these mounting holes, thus securing the monitoring device body in place.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention, by incorporating an exhaust pipe, a filter screen, and a heat exchange tube, allows the monitoring device to transport analyzed flue gas into the housing via the exhaust pipe. Inside the housing, the filter screen adsorbs impurities from the flue gas. The flue gas then enters the heat exchange tube inside the fixed sleeve via a connecting pipe. Cold water enters the fixed sleeve via an inlet pipe. The high-temperature flue gas inside the heat exchange tube heats the cold water inside the fixed sleeve. The cooled flue gas is then discharged through the exhaust pipe, and the heated water inside the fixed sleeve is discharged through the outlet pipe. This design achieves the effect of reducing flue gas temperature while preheating the cold water, protecting the environment, and reducing waste. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention from a first angle;

[0017] Figure 2 This is a two-dimensional structural diagram of the present invention from a second angle;

[0018] Figure 3 This is a three-dimensional structural diagram of the present invention from a third angle;

[0019] Figure 4 This is a cross-sectional view of the fixing sleeve and the housing of this utility model.

[0020] In the diagram: 1. Fixing sleeve; 2. Observation window; 3. Machine door; 4. Monitoring device body; 5. Controller; 6. Air outlet pipe; 7. Water inlet pipe; 8. Water outlet pipe; 9. Exhaust pipe; 10. Housing; 11. Air inlet pipe; 12. Fixing bracket; 13. Fixing hole; 14. Heat exchange tube; 15. Fixing groove; 16. Filter screen; 17. Connecting pipe; 18. Insertion hole. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0025] Example 1

[0026] like Figures 1-4 As shown, the present invention proposes a furnace flue gas particulate matter concentration monitoring device, including a monitoring device body 4 and a filter screen 16. A controller 5 is installed on the rear side of the monitoring device body 4. A hinged door 3 is installed on the rear side of the monitoring device body 4 on one side of the controller 5. A housing 10 is installed at the bottom of the monitoring device body 4. An exhaust pipe 6 is installed on one side of the monitoring device body 4. An intake pipe 11 is installed on the side of the monitoring device body 4 opposite to the exhaust pipe 6. The exhaust pipe 6 extends into the housing 10 from the side. An insertion hole 18 is provided on the side of the housing 10. The filter screen 16 is inserted into the housing 10 through the insertion hole 18. A fixing sleeve 1 is installed at the bottom of the body 10. A heat exchange tube 14 is installed inside the fixing sleeve 1. A connecting pipe 17 is installed at the bottom of the shell 10. The bottom of the connecting pipe 17 extends into the interior of the fixing sleeve 1 from the top and is fixedly connected to the heat exchange tube 14. An exhaust pipe 9 is embedded at the bottom of the shell 10. The top of the exhaust pipe 9 is fixedly connected to the heat exchange tube 14. A water inlet pipe 7 is embedded on the side of the fixing sleeve 1. A water outlet pipe 8 is embedded on the side of the fixing sleeve 1 below the water inlet pipe 7. An observation window 2 is embedded on the rear side of the fixing sleeve 1. A fixing frame 12 is welded to the front side of the monitoring device body 4. The fixing frame 12 has fixing holes 13 in a rectangular array.

[0027] In this embodiment, the fixing frame 12 is fixed to the bearing structure using bolts or other tools through the fixing holes 13 of the fixing frame 12. The fixing frame 12 fixes the monitoring device body 4. The furnace exhaust pipe is connected to the air inlet pipe 11 on the side of the monitoring device body 4. The monitoring data range of the monitoring device body 4 is set using the controller 5. The flue gas discharged from the furnace enters the monitoring device body 4 from the air inlet pipe 11. The monitoring device body 4 analyzes the composition of the flue gas through the internal analysis mechanism. The monitoring device body 4 transports the analyzed flue gas to the inside of the shell 10 through the exhaust pipe 6. The filter screen 16 inside the shell 10 adsorbs impurities in the flue gas. The flue gas inside the shell 10 enters the heat exchange tube 14 inside the fixed sleeve 1 through the connecting pipe 17. Cold water enters the fixed sleeve 1 through the water inlet pipe 7. The high temperature flue gas inside the heat exchange tube 14 heats the cold water inside the fixed sleeve 1. The flue gas inside the heat exchange tube 14 is cooled and discharged from the exhaust pipe 9. The water that has been heated inside the fixed sleeve 1 is discharged from the water outlet pipe 8.

[0028] Example 2

[0029] like Figures 1-4 As shown, the present invention proposes a furnace flue gas particulate matter concentration monitoring device. Compared with the first embodiment, this embodiment further includes: a fixing groove 15. The fixing groove 15 is provided on the inner side of the housing 10, and the filter screen 16 is inserted into the fixing groove 15 on one side of the housing 10.

[0030] In this embodiment, the filter screen 16 is fixed inside the housing 10 by the fixing groove 15, which increases the stability of the filter screen 16.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A furnace flue gas particulate matter concentration monitoring device comprising a monitoring device body (4) and a filter screen (16), characterised in that: The monitoring device body (4) has a housing (10) installed at the bottom. An air outlet pipe (6) is installed on one side of the monitoring device body (4). The air outlet pipe (6) extends into the housing (10) from the side. An insertion hole (18) is opened on the side of the housing (10). The filter screen (16) is inserted into the housing (10) through the insertion hole (18). A fixing sleeve (1) is installed at the bottom of the housing (10). A heat exchange tube (14) is installed inside the fixing sleeve (1). A water inlet pipe (7) is embedded in the side of the fixing sleeve (1).

2. A furnace flue gas particulate matter concentration monitoring device according to claim 1, characterized in that: A controller (5) is installed on the rear side of the monitoring device body (4), and an organic door (3) is installed on the rear side of the monitoring device body (4) on one side of the controller (5) via a hinge.

3. A furnace flue gas particulate matter concentration monitoring device according to claim 1, characterized in that: An air inlet pipe (11) is installed on the side of the monitoring device body (4) away from the air outlet pipe (6).

4. The device for monitoring the concentration of particulate matter in the flue gas of a furnace according to claim 1, characterized in that: A fixing groove (15) is provided on the inner side of the housing (10), and the filter screen (16) is inserted into the fixing groove (15) on one side of the housing (10).

5. A furnace flue gas particulate matter concentration monitoring device according to claim 1, characterized in that: A connecting pipe (17) is installed at the bottom of the housing (10). The bottom of the connecting pipe (17) extends from the top of the fixed sleeve (1) into its interior and is fixedly connected to the heat exchange tube (14). An exhaust pipe (9) is embedded at the bottom of the housing (10) and is fixedly connected to the top of the heat exchange tube (14).

6. A furnace flue gas particulate matter concentration monitoring device according to claim 1, characterized in that: An observation window (2) is embedded in the rear side of the fixing sleeve (1).

7. A furnace flue gas particulate matter concentration monitoring device according to claim 6, characterised in that: The outlet pipe (8) is embedded in the side of the fixing sleeve (1) below the inlet pipe (7).

8. The device for monitoring the concentration of particulate matter in the flue gas of a furnace according to claim 1, characterized in that: The monitoring device body (4) has a fixing frame (12) welded to the front side, and the fixing frame (12) has fixing holes (13) in a rectangular array.

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