Electric furnace flue gas purification mechanism

Abstract

The utility model discloses a flue gas purification mechanism for an electric furnace, which relates to the field of waste gas treatment and comprises a particulate matter purification pipe, a plurality of groups of filter inserts are arranged on the particulate matter purification pipe and are used for adsorbing particulate matters in waste gas of the electric furnace, and a connecting beam is arranged on the side wall of the particulate matter purification pipe, is used for inserting the filter inserts into a groove and is connected with the filter inserts. Through the arrangement of the plug-in particulate matter adsorption plates and the plug plates detachably connected with the connecting beams, plug-and-play can be achieved, operation is easy, and replacement is convenient. Every two filter plug-in units are used in a matched mode, so that the filter plug-in units are firmly connected after being installed and are very convenient to pull out. Meanwhile, a sealing rubber mat is arranged, so that the sealing performance is ensured, and waste gas is prevented from escaping from gaps. And a motor is arranged in the particulate matter purification pipe to drive fan blades to rotate so as to increase the air velocity, and the fan blades are arranged among different groups of filtering plug-ins in a penetrating manner, so that waste gas can smoothly pass through the multiple groups of filtering plug-ins.

Description

Technical Field

[0001] The utility model relates to the field of waste gas treatment, and particularly relates to a purification mechanism for electric furnace flue gas. Background Art

[0002] With the increasing attention paid by people to environmental requirements, and most enterprises also having requirements for pollutant treatment within their own premises, the purification treatment of various waste gases has also received due attention. Among them, a large amount of flue gas is often generated when an electric furnace is in use, and the main pollutants in these flue gases include inhalable particulate matter, carbon monoxide, sulfur dioxide, etc.

[0003] Direct discharge of these flue gases will pollute the atmosphere and also affect the physical health of employees. Therefore, these flue gases need to be treated before being discharged. Among them, as the most main pollutant gas in electric furnace flue gas, inhalable particulate matter needs to be purified first.

[0004] Currently, the treatment of inhalable particulate matter in electric furnace flue gas mainly adopts the method of adsorption and filtration, and adsorption and filtration are generally achieved by using filter elements or similar filters. After long-term use, the filter will adsorb excessive particulate matter, which will cause blockage and also affect the adsorption effect of particulate matter. Therefore, the filter needs to be replaced or cleaned frequently.

[0005] Moreover, because the filter is often installed inside the pipeline, it is very inconvenient to replace. In some cases, the pipeline even needs to be disassembled for cleaning, which is not only troublesome but also very dirty. Content of the Utility Model

[0006] In view of this, the purpose of the present utility model is to provide a purification mechanism for electric furnace flue gas to solve the technical problems such as the dust and particulate matter in the waste gas blocking the heat exchange tubes and the untimely cleaning in the prior art.

[0007] Based on the above purpose, the present utility model provides a purification mechanism for electric furnace flue gas, including a particulate matter purification pipe. A number of groups of filter inserts are provided on the particulate matter purification pipe for adsorbing particulate matter in the electric furnace waste gas. A slot for inserting the filter insert and a connecting beam connected to the filter insert are provided on the side wall of the particulate matter purification pipe. The filter insert includes:

[0008] A particulate matter adsorption plate inserted into the particulate matter purification pipe, the particulate matter adsorption plate is fixedly connected to the inner side of the insertion plate, and the insertion plate is detachably connected to the connecting beam;

[0009] One group is composed of two filter inserts symmetrically arranged on both sides of the particulate matter purification pipe. The particulate matter adsorption plate is semi-circular, and two symmetrically installed particulate matter adsorption plates are attached together to form a circle with the same size as the inner cross-section of the particulate matter purification pipe.

[0010] Further, a motor is fixedly connected to the center inside the particulate purification pipe. A connecting rod is connected to the output shaft of the motor. A fan blade for driving the airflow to flow is provided on the connecting rod, and the connecting rod is collinear with the central axis of the particulate purification pipe.

[0011] Further, a connecting ring matching with the connecting rod is provided at the center of the front end of the particulate adsorption plate. The connecting ring is semicircular. After two filter inserts in the same group are installed in place, two of the connecting rings will form a closed circular ring and be sleeved on the connecting rod and rotatably connected thereto.

[0012] Further, a sealing gasket is provided at the front end of the particulate adsorption plate. After two filter inserts in the same group are installed in place, two of the sealing gaskets will fit together.

[0013] Further, an air inlet pipe and an air outlet pipe are respectively connected to both ends of the particulate purification pipe. The other end of the air inlet pipe is connected to the air outlet of the electric furnace, and the other end of the air outlet pipe is connected to the next waste gas treatment device.

[0014] Further, a baffle is fixedly connected to the outer end of the plug board, and a positioning block is also fixedly connected to the front end of the plug board. A ball is rotatably connected to the positioning block. Only the top of the ball is exposed inside the positioning block, and a spring is further provided between the bottom of the ball and the positioning block.

[0015] Further, the connecting beam is fixedly connected to the particulate purification pipe, and a positioning groove matching with the positioning block is provided on the connecting beam. A ball groove matching with the ball is also provided in the positioning groove.

[0016] The advantages of the present utility model are as follows: 1. By providing an insertable particulate adsorption plate and a plug board detachably connected to the connecting beam, it can be used immediately after insertion, with simple operation and convenient replacement.

[0017] 2. The filter inserts are used in pairs of two. Not only are they firmly connected after installation, but they are also very convenient to pull out. At the same time, a sealing gasket is provided to ensure the sealing performance and prevent waste gas from escaping through the gaps.

[0018] 3. A motor is provided in the particulate purification pipe to drive the fan blade to rotate to increase the air flow rate, and the fan blade is arranged between different groups of filter inserts, so that the waste gas can smoothly pass through multiple groups of filter inserts. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only those of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 This is the overall structural schematic diagram of the present utility model.

[0021] Figure 2 This is the schematic diagram of the internal structural principle of the present utility model.

[0022] Figure 3 This is the structural schematic diagram of the filter plug-in of the present utility model.

[0023] Figure 4 This is the structural schematic diagram of the motor and fan blade part of the present utility model.

[0024] Figure 5 This is the structural schematic diagram of the positioning block and ball part of the present utility model.

[0025] The labels in the figure are: 101, intake pipe; 102, particulate matter purification pipe; 103, outlet pipe; 104, connecting beam; 105, filter plug-in; 106, particulate matter adsorption plate; 107, plug board; 108, baffle plate; 109, connecting ring; 110, sealing gasket; 111, positioning block; 112, ball; 113, spring; 114, motor; 115, connecting rod; 116, fan blade.

[0026] Specific implementation manners and principles

[0027] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below in conjunction with specific embodiments.

[0028] It should be noted that unless otherwise defined, the technical terms or scientific terms used in the present utility model should have the ordinary meanings understood by those with ordinary skills in the field to which the present utility model belongs. The "first", "second" and similar words used in the present utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0029] In the first aspect of the present utility model, as Figure 1 and Figure 2As shown in the figure, the utility model mainly consists of an intake pipe 101, a particulate purification pipe 102 and an outlet pipe 103 connected in sequence. The two ends of the particulate purification pipe 102 are respectively connected to the intake pipe 101 and the outlet pipe 103. The other end of the intake pipe 101 is connected to the air outlet of the electric furnace, and the other end of the outlet pipe 103 is connected to the next waste gas treatment device.

[0030] The key point is that several groups of filter inserts 105 are provided on the particulate purification pipe 102 for adsorbing particulate matter in the waste gas of the electric furnace. And on the side wall of the particulate purification pipe 102, there are grooves for the filter inserts 105 to be inserted into and connecting beams 104 connected to the filter inserts 105. The connecting beams 104 are fixedly connected to the particulate purification pipe 102.

[0031] Among them, the same group of filter inserts 105 is composed of two filter inserts 105 symmetrically arranged on both sides of the particulate purification pipe 102. The filter insert 105 mainly consists of a particulate adsorption plate 106 inserted into the particulate purification pipe 102 and an insertion plate 107 fixedly connected to the outside of the particulate adsorption plate 106. The particulate adsorption plate 106 is semi-circular, and the two symmetrically installed particulate adsorption plates 106 are attached together to form a circle with the same size as the internal cross-section of the particulate purification pipe 102.

[0032] Specifically, as Figure 3 shown, the filter insert 105 has components such as a connecting ring 109, a sealing gasket 110, a particulate adsorption plate 106, an insertion plate 107 and a baffle 108 from the inside to the outside. Among them, a connecting ring 109 that cooperates with a connecting rod 115 is provided at the center of the front end of the particulate adsorption plate 106. The connecting ring 109 is semi-circular arc-shaped. After the two filter inserts 105 in the same group are installed in place, that is, when the two symmetrically installed particulate adsorption plates 106 are attached together to form a circle with the same size as the internal cross-section of the particulate purification pipe 102, the two connecting rings 109 will also form a closed ring and be sleeved on the connecting rod 115 and rotatably connected to it.

[0033] The sealing gasket 110 plays a sealing role. After the two filter inserts 105 in the same group are installed in place, that is, when the two symmetrically installed particulate adsorption plates 106 are attached together to form a circle with the same size as the internal cross-section of the particulate purification pipe 102, the two sealing gaskets 110 will be attached together to ensure the sealing performance and prevent waste gas from escaping from the gap. The baffle 108 is fixedly connected to the outer end of the insertion plate 107 and is mainly used to facilitate the worker to take it when inserting and removing.

[0034] Preferably, the filter insert 105 is detachably connected to the particulate purification pipe 102. The connection method mainly adopts the high static friction force brought by the interference fit during insertion and the clamping connection between the insertion plate 107 and the connecting beam 104.

[0035] A baffle 108 is fixedly connected to the outer end of the plug board 107, and a positioning block 111 is also fixedly connected to the front end of the plug board 107. A ball 112 is rotatably connected to the positioning block 111. Only the top of the ball 112 is exposed inside the positioning block 111, and a spring 113 is further provided between the bottom of the ball 112 and the positioning block 111. And a positioning groove matching with the positioning block 111 is provided on the connecting beam 104, and a ball groove matching with the ball 112 is provided at the corresponding position in the positioning groove.

[0036] The positioning block 111 itself is inserted into the positioning groove by an interference fit method. When inserting, the ball 112 is pressed to compress the spring 113 and enter the inside of the positioning block 111. When the positioning block 111 completely enters the positioning groove, the ball 112 reaches the position of the ball groove. At this time, the ball 112 is no longer squeezed and then pops out under the action of the spring 113 and enters the ball groove. Through the friction force and the limiting action of the ball 112, the positioning block 111 is relatively stably connected to the connecting beam 104. Thereby ensuring the reliable connection between the filter plug-in 105 and the particulate purification pipe 102.

[0037] On the other hand, as Figure 2 and Figure 4 shown, a motor 114 is also fixedly connected to the center of the particulate purification pipe 102. A connecting rod 115 is connected to the output shaft of the motor 114. A fan blade 116 for driving the air flow is provided on the connecting rod 115. The connecting rod 115 is collinear with the central axis of the particulate purification pipe 102. After two filter plug-ins 105 in the same group are installed in place, two of the connecting rings 109 form a closed ring and are sleeved on the connecting rod 115 and rotatably connected thereto.

[0038] The motor 114 drives the fan blade 116 to rotate to increase the air flow rate, and the fan blade 116 is arranged between different groups of filter plug-ins 105, so that the waste gas can smoothly pass through multiple groups of filter plug-ins 105. Specific implementation mode

[0039] When using the product of this solution to filter and purify the waste gas of the electric furnace, first, it is necessary to ensure that the intake pipe 101, the particulate purification pipe 102 and the outlet pipe 103 are connected to the electric furnace and the next waste gas treatment device. And the filter plug-in 105 is stably inserted into the particulate purification pipe 102, and then the motor 114 can be started.

[0040] The motor 114 drives the fan blade 116 to rotate to increase the air flow rate, and the fan blade 116 is arranged between different groups of filter plug-ins 105, so that the waste gas can smoothly pass through multiple groups of filter plug-ins 105.

[0041] After being used for a period of time, excessive particulate matter will be adsorbed on the filter plug 105, which will cause blockage and affect the adsorption effect of the particulate matter. Therefore, the filter plug 105 needs to be replaced or cleaned.

[0042] When replacing, the worker stops the use of the electric furnace and turns off the motor 114, then pulls out the filter plug 105 through the baffle 108, and finally inserts the new filter plug 105 into the particulate matter purification pipe 102. When inserting, it is necessary to ensure that the positioning block 111 is accurately inserted into the positioning groove. When inserting, when the positioning block 111 completely enters the positioning groove, the ball 112 reaches the position of the ball groove. At this time, the ball 112 is no longer squeezed and then pops into the ball groove under the action of the spring 113. Through the frictional force and the limiting action of the ball 112, the positioning block 111 is relatively stably connected to the connecting beam 104. Thus, it is ensured that the connection between the filter plug 105 and the particulate matter purification pipe 102 is firm.

[0043] Based on the above, the present utility model can achieve plug-and-play, with simple operation and convenient replacement by setting the plug-in particulate matter adsorption plate 106 and the plug plate 107 detachably connected to the connecting beam 104. Among them, the two filter plugs 105 are used in a group, which is not only firmly connected after installation but also very convenient to pull out. At the same time, a sealing gasket 110 is provided to ensure the sealing performance and prevent waste gas from escaping from the gap. And a motor 114 is arranged in the particulate matter purification pipe 102 to drive the fan blade 116 to rotate to increase the air flow rate, and the fan blade 116 is arranged between different groups of filter plugs 105 so that the waste gas can smoothly pass through multiple groups of filter plugs 105.

[0044] Those of ordinary skill in the art should understand that the discussion of any embodiment above is only exemplary and is not intended to imply that the scope of the present utility model includes the claims being limited to these examples; under the idea of the present utility model, the technical features between the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present utility model as described above, which are not provided in detail for the sake of brevity.

[0045] The present utility model aims to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An electric furnace flue gas purification mechanism, including a particulate matter purification pipe (102), several groups of filter inserts (105) are provided on the particulate matter purification pipe (102) for adsorbing particulate matter in the waste gas of the electric furnace, and a groove for inserting the filter insert (105) and a connecting beam (104) connected to the filter insert (105) are provided on the side wall of the particulate matter purification pipe (102), characterized in that, The filter plug-in (105) includes: A particulate matter adsorption plate (106) inserted into the particulate matter purification pipe (102), the particulate matter adsorption plate (106) is fixedly connected to the inner side of the plug board (107), and the plug board (107) is detachably connected to the connecting beam (104); Two filter plug-ins (105) are symmetrically arranged on both sides of the particulate matter purification pipe (102) to form a group. The particulate matter adsorption plate (106) is semi-circular, and two symmetrically installed particulate matter adsorption plates (106) are fitted together to form a circle with the same size as the inner cross-section of the particulate matter purification pipe (102).

2. The flue gas purification mechanism of an electric furnace according to claim 1, characterized in that: A motor (114) is also fixedly connected to the center inside the particulate matter purification pipe (102). A connecting rod (115) is connected to the output shaft of the motor (114). A fan blade (116) for driving the air flow is provided on the connecting rod (115), and the connecting rod (115) is collinear with the central axis of the particulate matter purification pipe (102).

3. The flue gas purification mechanism of an electric furnace according to claim 2, characterized in that: A connecting ring (109) that cooperates with the connecting rod (115) is provided at the center of the front end of the particulate matter adsorption plate (106). The connecting ring (109) is semi-circular arc-shaped. After the two filter plug-ins (105) in the same group are installed in place, the two connecting rings (109) will form a closed ring and be sleeved on the connecting rod (115) and rotatably connected thereto.

4. The flue gas purification mechanism of an electric furnace according to claim 1 or 3, characterized in that: A sealing gasket (110) is also provided at the front end of the particulate matter adsorption plate (106). After the two filter plug-ins (105) in the same group are installed in place, the two sealing gaskets (110) will be fitted together.

5. The flue gas purification mechanism of an electric furnace according to claim 1, characterized in that: The two ends of the particulate matter purification pipe (102) are respectively connected to an air inlet pipe (101) and an air outlet pipe (103). The other end of the air inlet pipe (101) is connected to the air outlet of the electric furnace, and the other end of the air outlet pipe (103) is connected to the next waste gas treatment device.

6. The flue gas purification mechanism of an electric furnace according to claim 1, characterized in that: A baffle (108) is fixedly connected to the outer end of the plug board (107), and a positioning block (111) is also fixedly connected to the front end of the plug board (107). A ball (112) is rotatably connected to the positioning block (111). The ball (112) is located inside the positioning block (111) with only the top exposed, and a spring (113) is also provided between the bottom of the ball (112) and the positioning block (111).

7. The flue gas purification mechanism of an electric furnace according to claim 1, characterized in that: The connecting beam (104) is fixedly connected to the particulate matter purification pipe (102), and a positioning groove that cooperates with the positioning block (111) is provided on the connecting beam (104), and a ball groove that cooperates with the ball (112) is also provided in the positioning groove.

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