Dry dust removal tower

Abstract

The utility model relates to a dry-type dust removal tower which comprises a tower body, an air inlet is formed in the bottom of the tower body, an exhaust port is formed in the top of the tower body, a filter layer is arranged in the tower body and located between the air inlet and the exhaust port, a movable support is arranged above the filter layer, and the movable support is connected with the tower body. A plurality of vertical connecting rods are arranged on the lower surface of the movable support, elastic blocks are arranged at the lower ends of the connecting rods, and the movable support is connected with a lifting mechanism driving the movable support to move up and down. According to the dust removal tower, dust can be removed from the filter layer in the dust removal tower, the dust removal tower does not need to be frequently opened and the filter layer does not need to be taken out, the operation difficulty is low, normal work of the dust removal tower is not affected in the dust removal process, water is not needed, sewage is not generated, and the cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of dust removal equipment, in particular to a dry dust removal tower. Background Art

[0002] Dust removal towers are commonly used gas purification equipment. Traditional dust removal towers generally remove dust or soluble pollutants in the gas by filtering or washing. During use, the dust trapped in the filter layer will gradually increase and gradually fill the internal gap of the filler, causing the filler to be blocked, so the filler needs to be replaced or cleaned frequently. CN202122748294.4 discloses a cyclone dust removal tower, which first performs spray dust removal and then filters and removes dust through fillers and sponges. Although this dust removal tower can clean the filler by spraying to remove the dust remaining in the filler, it will produce sewage, which needs to be purified, resulting in increased processing costs. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a dry dust removal tower, which can prevent the filter layer from being quickly blocked, reduce the cleaning and maintenance frequency of the filter layer, and does not require water, does not generate sewage, and reduces costs.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is: a dry dust removal tower, including a tower body, an air inlet is provided at the bottom of the tower body, an exhaust port is provided at the top, a filter layer is provided inside the tower body, the filter layer is located between the air inlet and the exhaust port, a movable bracket is provided above the filter layer, a plurality of vertical connecting rods are provided on the lower surface of the movable bracket, an elastic block is provided at the lower end of the connecting rod, and the movable bracket is connected to a lifting mechanism for driving the movable bracket to move up and down.

[0005] Furthermore, the lifting mechanism is a pneumatic cylinder or a hydraulic cylinder, a fixed bracket is provided above the movable bracket, and the pneumatic cylinder or the hydraulic cylinder is installed on the fixed bracket.

[0006] Furthermore, the filter layer is an arc-shaped filter layer with a center convex upward, and the lower surface of the elastic block is an arc-shaped surface.

[0007] Furthermore, a circular support plate is provided on the inner wall of the tower body below the filter layer, a vertical guide column is provided on the upper surface of the support plate, the guide column passes through the filter layer and slides with the filter layer, a connecting spring is provided between the filter layer and the support plate, and a limiting nut is provided on the top of the guide column.

[0008] Furthermore, a circular inner cylinder is provided inside the lower part of the tower body, a top plate is provided between the upper end of the inner cylinder and the side wall of the tower body, the lower end of the inner cylinder is fixedly connected to the bottom wall of the tower body, a dust collecting chamber is provided between the inner cylinder and the side wall of the tower body, and the air inlet is connected to the inner cavity of the inner cylinder through an air inlet channel; a lower baffle and an upper baffle are provided inside the inner cylinder, both of which are conical plates with a center protruding upward, and the edges of the lower baffle and the upper baffle are fixedly connected to the inner cylinder, a first air hole is provided at the center of the lower baffle, a second air hole is provided at the edge of the upper baffle, and an ash discharge hole is provided on the side wall of the inner cylinder between the upper baffle and the lower baffle, and the ash discharge hole is connected to the dust collecting chamber.

[0009] Furthermore, a dust cleaning door is provided on the side wall of the tower body.

[0010] Furthermore, the filter layer is a quartz sand filter layer.

[0011] Furthermore, the elastic block is a rubber block.

[0012] The beneficial effects of the utility model are as follows: the utility model uses the filter layer to filter the gas and remove the dust in the gas. After running for a period of time, the lifting mechanism can be started, and the lifting mechanism pushes the movable bracket to move downward, driving the connecting rod and the elastic block to move downward. When the elastic block contacts the filter layer, the filter layer is knocked to make the filter layer vibrate, and part of the dust in the filter layer will fall downward, reducing the amount of dust in the filter layer, and the filter layer can continue to intercept the dust in the gas. The utility model can clean the filter layer inside the dust removal tower, without frequently opening the dust removal tower and taking out the filter layer, the operation is easy, and the normal operation of the dust removal tower is not affected during the cleaning process, and no water is required, no sewage is generated, and the cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the main cross-sectional view of the utility model;

[0014] Figure numerals: 1—tower body; 2—air inlet; 3—exhaust outlet; 4—filter layer; 5—movable bracket; 6—connecting rod; 7—elastic block; 8—lifting mechanism; 9—inner cylinder; 10—top plate; 11—dust collecting chamber; 12—fixed bracket; 13—support plate; 14—guide column; 15—connecting spring; 16—limiting nut; 17—air inlet channel; 18—lower baffle; 19—upper baffle; 20—first air hole; 21—second air hole; 22—ash discharge hole; 23—ash cleaning door. DETAILED DESCRIPTION

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] The dry dust removal tower of the utility model is as follows Figure 1As shown, it includes a tower body 1, an air inlet 2 is arranged at the bottom of the tower body 1, an exhaust port 3 is arranged at the top, a filter layer 4 is arranged inside the tower body 1, the filter layer 4 is located between the air inlet 2 and the exhaust port 3, a movable bracket 5 is arranged above the filter layer 4, a plurality of vertical connecting rods 6 are arranged on the lower surface of the movable bracket 5, an elastic block 7 is arranged at the lower end of the connecting rod 6, and the movable bracket 5 is connected to a lifting mechanism 8 for driving the movable bracket 5 to move up and down.

[0017] The main body of the tower body 1 is a circular cylindrical tower body, the top of the tower body is sealed by a head, and the head can be connected to the tower body by bolts, so as to open the head and inspect or replace the internal filter layer 4, and the bottom of the tower body is sealed by a bottom plate. The air inlet 2 is used to pass the gas to be dedusted, which can be various waste gases, tail gases, flue gases and other dust-containing gases. The air inlet 2 can be connected to components such as a fan to continuously transport the gas to the inside of the tower body 1. The filter layer 4 is used to filter the gas and intercept the dust in the gas. The exhaust port 3 is used to discharge the gas after dust removal.

[0018] The movable bracket 5 can move up and down, the connecting rod 6 is fixed on the movable bracket 5, and the elastic block 7 is fixed on the lower end of the connecting rod 6. When the movable bracket 5 moves up and down, it can drive the connecting rod 6 and the elastic block 7 to move up and down synchronously. After the dust removal tower of the utility model has been running for a period of time, the filter layer 4 is gradually filled with dust, and the filtering efficiency is reduced. At this time, the lifting mechanism 8 can be started, and the lifting mechanism 8 pushes the movable bracket 5 to move downward, and the movable bracket 5 drives the connecting rod 6 and the elastic block 7 to move downward. When the elastic block 7 contacts the filter layer 4, the filter layer 4 is knocked. The lifting mechanism 8 continuously drives the movable bracket 5 to lift and lower back and forth, and the elastic block 7 continuously knocks the filter layer 4, which can cause the filter layer 4 to vibrate. Under the action of vibration, part of the dust in the filter hole of the filter layer 4 will fall downward, thereby separating from the filter layer 4, reducing the amount of dust in the filter hole of the filter layer 4, and improving the filtering efficiency of the filter layer 4.

[0019] The elastic block 7 is made of an elastic material to avoid damage to the filter layer 4 , for example, a rubber block with good elasticity may be used.

[0020] The lifting mechanism 8 can be any existing electric telescopic mechanism, such as a linear motor, etc. Preferably, the lifting mechanism 8 is a cylinder or a hydraulic cylinder, and a fixed bracket 12 is provided above the movable bracket 5, and the cylinder or hydraulic cylinder is installed on the fixed bracket 12. The fixed bracket 12 is fixedly installed on the inner wall of the tower body 1, and the cylinder body of the cylinder or hydraulic cylinder is vertically fixed on the fixed bracket 12, and the piston rod of the cylinder or hydraulic cylinder is fixedly connected to the movable bracket 5.

[0021] In order to increase the filtering area, the filter layer 4 is an arc-shaped filter layer with a center convex upward, and the lower surface of the elastic block 7 is an arc-shaped surface, so that the lower surface of the elastic block 7 can fit the upper surface of the filter layer 4, increasing the contact area between the elastic block 7 and the filter layer 4.

[0022] The inner wall of the tower body 1 below the filter layer 4 is provided with a circular support plate 13, and the upper surface of the support plate 13 is provided with a vertical guide column 14, which penetrates the filter layer 4 and slides with the filter layer 4, and a connecting spring 15 is provided between the filter layer 4 and the support plate 13, and a limiting nut 16 is provided on the top of the guide column 14. The connecting spring 15 can play a buffering role. When the filter layer 4 is hit by the elastic block 7, the connecting spring 15 is compressed to absorb the impact on the filter layer 4, thereby playing a protective role. When the elastic block 7 is separated from the filter layer 4 upward, the connecting spring 15 pushes the filter layer 4 to reset upward. The limiting nut 16 is used to limit the filter layer 4 to ensure the stability of the position of the filter layer 4.

[0023] In order to enhance the dust removal effect, a circular inner cylinder 9 is arranged inside the lower part of the tower body 1. The inner cylinder 9 is coaxial with the tower body 1. A horizontal top plate 10 is arranged between the upper end of the inner cylinder 9 and the side wall of the tower body 1. The lower end of the inner cylinder 9 is fixedly connected to the bottom wall of the tower body 1. A dust collecting chamber 11 is provided between the inner cylinder 9 and the side wall of the tower body 1. The top plate 10 seals the top of the dust collecting chamber 11. The air inlet 2 is connected to the inner cavity of the inner cylinder 9 through the air inlet channel 17. The air inlet channel 17 can be a pipe. A lower baffle 18 and an upper baffle 19 are provided inside the inner cylinder 9, and there is a distance between the lower baffle 18 and the upper baffle 19. The upper baffle 19 is located below the filter layer 4. The lower baffle 18 and the upper baffle 19 are both conical plates with a center protruding upward, and the edges of the lower baffle 18 and the upper baffle 19 are fixedly connected to the inner cylinder 9. A first air hole 20 is provided at the center of the lower baffle 18, and a second air hole 21 is provided at the edge of the upper baffle 19. An ash discharge hole 22 is provided on the side wall of the inner cylinder 9 between the upper baffle 19 and the lower baffle 18, and the ash discharge hole 22 is connected to the dust collecting chamber 11.

[0024] The dust-containing gas enters the interior of the inner cylinder 9 through the air inlet 2 and the air inlet channel 17. Part of the dust is blocked by the lower baffle 18 and decelerated, and settles to the bottom of the inner cylinder 9 under the action of gravity; part of the dust enters the space between the upper baffle 19 and the lower baffle 18 through the first air hole 20 along with the gas, and then flows radially toward the edge of the lower baffle 18 along the inner cylinder 9. Since the flow path is inclined downward, part of the dust is blocked by the upper baffle 19 and settles on the upper surface of the lower baffle 18, then slides along the lower baffle 18 to the edge of the lower baffle 18, and finally enters the dust collecting chamber 11 through the ash discharge hole 22. Some small particles of dust flow to the top of the upper baffle 19 through the second air hole 21 along with the gas, and the gas is filtered by the filter layer 4 and then discharged.

[0025] The utility model first performs sedimentation treatment on the dust in the gas, which can reduce the dust content in the gas, improve the dust removal effect, and reduce the load of the filter layer 4.

[0026] In order to facilitate the cleaning of dust in the dust collecting chamber 11, a cleaning door 23 is provided on the side wall of the tower body 1. The cleaning door 23 is located on the side wall of the dust collecting chamber 11. After the cleaning door 23 is opened, the dust collecting chamber 11 can be cleaned.

[0027] In the present invention, the filter layer 4 is a quartz sand filter layer, which is composed of granular quartz sand, and the quartz sand particles can be loaded in a mesh box. In addition, the filter layer 4 can also be a conventional filter material such as an activated carbon filter layer.

[0028] The utility model removes dust by sedimentation and filtration, does not require water, does not generate sewage, reduces operating costs, and can regularly clean the filter layer 4, prolonging the cleaning time of the filter layer 4 and reducing the maintenance frequency.

[0029] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A dry dust removal tower, comprising a tower body (1), wherein the bottom of the tower body (1) is provided with an air inlet (2), the top of the tower body (1) is provided with an air outlet (3), a filter layer (4) is provided inside the tower body (1), and the filter layer (4) is located between the air inlet (2) and the air outlet (3), characterized in that: A movable bracket (5) is arranged above the filter layer (4), a plurality of vertical connecting rods (6) are arranged on the lower surface of the movable bracket (5), an elastic block (7) is arranged at the lower end of the connecting rod (6), and the movable bracket (5) is connected to a lifting mechanism (8) for driving the movable bracket (5) to move up and down.

2. The dry dust removal tower according to claim 1, characterized in that: The lifting mechanism (8) is a pneumatic cylinder or a hydraulic cylinder, a fixed bracket (12) is arranged above the movable bracket (5), and the pneumatic cylinder or the hydraulic cylinder is installed on the fixed bracket (12).

3. The dry dust removal tower according to claim 1, characterized in that: The filter layer (4) is an arc-shaped filter layer with a center convex upward, and the lower surface of the elastic block (7) is an arc-shaped surface.

4. The dry dust removal tower according to claim 1, characterized in that: A circular support plate (13) is arranged on the inner wall of the tower body (1) below the filter layer (4); a vertical guide column (14) is arranged on the upper surface of the support plate (13); the guide column (14) penetrates the filter layer (4) and is slidably matched with the filter layer (4); a connecting spring (15) is arranged between the filter layer (4) and the support plate (13); and a limit nut (16) is arranged on the top of the guide column (14).

5. The dry dust removal tower according to claim 1, characterized in that: An annular inner cylinder (9) is arranged inside the lower part of the tower body (1); a top plate (10) is arranged between the upper end of the inner cylinder (9) and the side wall of the tower body (1); the lower end of the inner cylinder (9) is fixedly connected to the bottom wall of the tower body (1); a dust collecting chamber (11) is provided between the inner cylinder (9) and the side wall of the tower body (1); the air inlet (2) is connected to the inner cavity of the inner cylinder (9) through an air inlet channel (17); a lower baffle (18) and an upper baffle (19) are arranged inside the inner cylinder (9); ), the lower baffle (18) and the upper baffle (19) are both conical plates with the center protruding upward, and the edges of the lower baffle (18) and the upper baffle (19) are fixedly connected to the inner cylinder (9), a first air hole (20) is provided at the center of the lower baffle (18), a second air hole (21) is provided at the edge of the upper baffle (19), and an ash discharge hole (22) is provided on the side wall of the inner cylinder (9) between the upper baffle (19) and the lower baffle (18), and the ash discharge hole (22) is connected to the dust collecting chamber (11).

6. The dry dust removal tower according to claim 5, characterized in that: A dust cleaning door (23) is provided on the side wall of the tower body (1).

7. The dry dust removal tower according to claim 1, characterized in that: The filter layer (4) is a quartz sand filter layer.

8. The dry dust removal tower according to claim 1, characterized in that: The elastic block (7) is a rubber block.

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