A system for treating exhaust gas from a magnetic material pellet production

Abstract

The application discloses a kind of magnetic material granular material production waste gas treatment systems, belong to waste gas treatment technical field, comprising: tank, waste gas enters the inside of tank from the lower end of tank, is discharged from the upper end surface of tank, the lower end of tank is also equipped with the discharge pipe for discharging purifying liquid;Multiple spray components, multiple spray components are distributed in the inside of tank along the axial direction of tank, spray component includes: spraying part, spraying part is fixedly installed in the inside of tank, for spraying purifying liquid downwards;Flow guide part, flow guide part is fixedly installed in the inside of tank, for guiding waste gas, lengthen the movement track of waste gas, the setting of the present application through penetration and guide plate, let the waste gas inside through each penetration spirally rise, simultaneously still can let all waste gas that passes through penetration spirally rise as a whole, lengthen the movement track of waste gas, make waste gas can be fully contacted with purifying liquid, improve purification effect.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, specifically to a waste gas treatment system for the production of magnetic material granules. Background Technology

[0002] The waste gas generated during the production of magnetic material granules will pollute the environment if it is directly discharged. In order to avoid environmental pollution, it needs to be treated before it is discharged. Traditional treatment methods often use spray towers. However, traditional spray towers mostly use vertical airflow channels or simple baffle structures, resulting in short residence time of waste gas and insufficient contact between waste gas and purification liquid, thus leading to unsatisfactory purification effect. In order to solve the above problems, this invention provides a waste gas treatment system for the production of magnetic material granules. Summary of the Invention

[0003] To address the aforementioned technical shortcomings, the purpose of this invention is to provide a waste gas treatment system for the production of magnetic material granules. By setting up through-holes and guide plates, the waste gas passing through each through-hole spirals upward, and at the same time, all the waste gas passing through the through-holes rises along a spiral path, extending the movement trajectory of the waste gas and allowing the waste gas to fully contact the purification liquid, thereby improving the purification effect.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a waste gas treatment system for the production of magnetic material granules, comprising:

[0005] The tank body is used to allow the exhaust gas to enter the interior of the tank from the bottom and exit from the top surface of the tank. The bottom of the tank body is also equipped with a discharge pipe for discharging the purified liquid. The purified liquid after purifying the exhaust gas will fall into the interior of the bottom of the tank body and finally be discharged from the tank body through the discharge pipe. The purified liquid discharged from the tank body is then treated and reused.

[0006] Multiple spray components are distributed axially inside the tank. Each spray component includes a purification liquid entering the tank, which passes through the multiple spray components to purify the exhaust gas inside the tank.

[0007] A spraying unit, which is fixedly installed inside the tank, is used to spray the purification liquid downwards;

[0008] The guide section is fixedly installed inside the tank and is used to guide the exhaust gas. After passing through the guide section, the exhaust gas will form a compound spiral trajectory and rise inside the tank, thereby extending the movement trajectory of the exhaust gas inside the tank and allowing the purification liquid to fully contact the exhaust gas.

[0009] Preferably, the flow guide includes:

[0010] The fixing plate has multiple through holes, and each through hole is fixedly connected to multiple guide plates, which are spirally distributed on the inner side wall of the through hole.

[0011] Preferably, the guide plate is twisted, with one side being higher than the other.

[0012] Preferably, the upper and lower openings of the through-hole are spirally staggered.

[0013] Preferably, the spraying unit includes:

[0014] A ring pipe is fixedly installed inside the tank and is connected to an external lifting pump.

[0015] Multiple branch pipes are fixedly connected inside the ring pipe and are parallel to each other;

[0016] The lower side of the branch pipe and the lower side of the ring pipe are provided with multiple spray holes.

[0017] Preferably, the projections of the multiple branch pipes in two adjacent spray sections are perpendicular to each other.

[0018] Preferably, a flow equalization frame is fixedly connected to the lower end of the tank, and the flow equalization frame is connected to the external waste gas collection equipment through a connecting pipe. The upper end face of the flow equalization frame is provided with multiple unidirectional gas outlet holes.

[0019] Preferably, the upper surface of the flow equalization frame is an arch shape with a central upward convexity.

[0020] Preferably, each of the air outlets is provided with a spring sheet on its upper side. One side of the spring sheet is fixedly connected to the flow equalization frame, and the remaining part is in contact with the upper surface of the flow equalization frame under its own elastic force.

[0021] Preferably, the upper end face of the tank is provided with an opening, and a filter frame is fixedly connected to the opening, the interior of which is filled with activated carbon.

[0022] The beneficial effects of this invention are as follows:

[0023] This invention, through the design of the through-hole and the guide plate, enables the exhaust gas to form a spiral upward path under the action of the guide plate when passing through the through-hole. Furthermore, the upper and lower openings of the multiple through-holes are spirally staggered, which allows the exhaust gas passing through the through-hole to spiral upward as a whole, thus extending the movement trajectory of the exhaust gas. At the same time, the projections of the branch pipes of adjacent spray sections are perpendicular to each other, which allows the sprayed purification liquid to more efficiently cover the internal space of the tank, increasing the contact area between the purification liquid and the exhaust gas.

[0024] This invention, through the design of the flow equalization frame, enables the exhaust gas to rise evenly through the outlet holes on the flow equalization frame after entering the frame, thereby dispersing the exhaust gas inside the tank and promoting full contact between the purification liquid and the exhaust gas, thus improving the purification effect. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of a waste gas treatment system for the production of magnetic material granules, provided in an embodiment of the present invention.

[0027] Figure 2 This is a schematic diagram showing the distribution of the fixed plate, ring pipe, branch rod, and flow equalization frame of the present invention.

[0028] Figure 3 This is a cross-sectional view of the present invention.

[0029] Figure 4 For the present invention Figure 3 Enlarged view of point A.

[0030] Figure 5 This is a schematic diagram of the through-hole structure of the present invention.

[0031] Figure 6 This is a cross-sectional view of the fixing plate of the present invention.

[0032] Figure 7 This is a schematic diagram of the structure of the guide plate of the present invention.

[0033] Figure 8 This is a schematic diagram of the flow equalization frame of the present invention.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Tank body, 2. Fixing plate, 3. Through port, 4. Guide plate, 5. Ring pipe, 6. Branch pipe, 7. Flow equalization frame, 8. Air outlet, 9. Spring, 10. Filter frame. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] This invention provides a waste gas treatment system for the production of magnetic material granules, such as... Figures 1 to 8 As shown.

[0038] Example 1:

[0039] A waste gas treatment system for the production of magnetic material granules includes a tank 1. The lower end of the tank 1 is connected to an external waste gas collection device. Waste gas enters from the lower end of the tank 1 and exits from the upper end of the tank 1. Multiple spray components are installed inside the tank 1 and are distributed along the axial direction of the tank 1. After entering the tank 1, the waste gas rises and passes through the multiple spray components before finally exiting through the upper end of the tank 1. The waste gas is purified after passing through the multiple spray components.

[0040] The spray assembly includes a spray section and a guide section. The spray section is located above the guide section and can spray the purification liquid downwards. The guide section can guide the exhaust gas passing through it, prolonging the movement trajectory of the exhaust gas inside the tank 1, allowing the exhaust gas to stay inside the tank 1 for a longer time, so that the exhaust gas can fully contact the purification liquid, thereby improving the purification effect of the exhaust gas.

[0041] The spraying unit includes a ring pipe 5, which is fixedly installed inside the tank 1. The ring pipe 5 is connected to an external lift pump. Multiple branch pipes 6 are fixedly connected inside the ring pipe 5. The multiple branch pipes 6 installed on the same ring pipe 5 are parallel to each other. Spray holes are provided on the lower side of both the branch pipes 6 and the ring pipe 5. The external lift pump can pump the purified liquid into the ring pipe 5 and the branch pipes 6, and finally spray it out through the spray holes.

[0042] The projections of multiple branch pipes 6 in two adjacent spray sections are perpendicular to each other, which allows the sprayed purification liquid to better cover the internal space of the tank 1 and improve the purification effect.

[0043] The flow guiding section includes a fixed plate 2, on which multiple through-holes 3 are provided. The upper and lower openings of the through-holes 3 are spirally staggered, allowing all the exhaust gas passing through the through-holes 3 to spiral upward as a whole. Multiple guide plates 4 are fixedly connected inside the through-holes 3. The multiple guide plates 4 are spirally distributed along the axis of the through-holes 3, allowing the exhaust gas passing through the through-holes 3 to spiral upward on its own. The guide plates 4 and the through-holes 3 cooperate with each other, allowing each stream of exhaust gas passing through the through-holes 3 to form a spiral trajectory. At the same time, the multiple streams of exhaust gas passing through all the through-holes 3 spiral upward as a whole, greatly extending the movement path and movement time of the exhaust gas inside the tank 1. This allows the purification liquid to fully contact the exhaust gas, resulting in a better purification effect.

[0044] Meanwhile, when the purification liquid falls onto the through-hole 3, it will flow downwards along the guide plate 4, thereby forming a liquid film between two adjacent guide plates 4. When the exhaust gas rises under the guidance of the guide plate 4, it will pass through the liquid film, which can further improve the purification effect of the exhaust gas.

[0045] In addition, the spiral shape of the guide plate 4 allows the deposited particles to be better flushed away by the purification liquid, preventing the accumulation of particles from clogging the through-hole 3 and affecting the purification effect.

[0046] The lower end of the tank 1 is also equipped with a discharge pipe. The purification liquid sprayed from the ring pipe 5 and the branch pipe 6 will fall into the tank 1 after contacting the exhaust gas. Finally, it will be discharged to the external treatment equipment through the discharge pipe. After being treated by the external treatment equipment, it will be pumped back into the ring pipe 5 and the branch pipe 6 by the external lift pump for purification, thereby achieving the purpose of energy saving and emission reduction.

[0047] Example 2:

[0048] Based on Example 1, in order to make the exhaust gas come into more complete contact with the purification liquid, a flow equalization frame 7 is fixedly connected to the lower end of the tank 1. The flow equalization frame 7 is fixedly installed inside the tank 1 by a fixing rod fixedly connected to it. The flow equalization frame 7 is connected to the external exhaust gas collection equipment through a connecting pipe. The exhaust gas enters the interior of the flow equalization frame 7 through the connecting pipe, and then rises evenly inside the tank 1 through multiple air outlets 8 provided on the upper end face of the flow equalization frame 7. This allows the exhaust gas to rise more dispersedly inside the tank 1, thereby allowing the exhaust gas to come into more complete contact with the purification liquid and improving the purification effect.

[0049] To prevent the purified liquid from entering the interior of the flow equalization frame 7 and affecting the purified liquid recovery process, a spring plate 9 is installed on the upper side of the air outlet 8. One side of the spring plate 9 is fixedly connected to the flow equalization frame 7, and the remaining part of the spring plate 9 is in contact with the upper end face of the flow equalization frame 7 under its own elastic force. The diameter of the spring plate 9 is larger than the diameter of the air outlet 8. After the exhaust gas enters the interior of the flow equalization frame 7, it will pass through the air outlet 8 and push the spring plate 9 open. At this time, because the exhaust gas continuously passes through the air outlet 8, the purified liquid can be prevented from entering the interior of the flow equalization frame 7.

[0050] When no exhaust gas is discharged from the exhaust port 8, the spring plate 9 adheres to the upper surface of the flow equalization frame 7 under its own elastic force, preventing the purified liquid from entering the interior of the flow equalization frame 7.

[0051] To prevent the purification liquid from lingering on the upper surface of the flow equalization frame 7, the upper surface of the flow equalization frame 7 is designed as an arch with a convex shape in the middle. After the purification liquid falls on the upper surface of the flow equalization frame 7, it will slide off the flow equalization frame 7 under its own gravity. During the downward flow of the purification liquid, a water film will form on the upper surface of the flow equalization frame 7, so that the exhaust gas can come into contact with the purification liquid for the first time while passing through the exhaust port 8, thus achieving the initial purification.

[0052] Example 3:

[0053] The upper end face of the tank body 1 is provided with an opening, and a filter frame 10 is fixedly connected to the upper end face of the tank body 1. The filter frame 10 adopts a double-layer stainless steel mesh structure and is filled with activated carbon. When the exhaust gas rises to the top of the tank body 1 through the spray assembly, it will pass through the filter frame 10 and the activated carbon layer inside the filter frame 10, thereby purifying the exhaust gas again.

[0054] Because the exhaust gas passing through the spray assembly rises in a spiral trajectory, the permeability of the exhaust gas can be improved, allowing the exhaust gas to pass through the filter frame 10 and the activated carbon layer better.

[0055] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A waste gas treatment system for the production of magnetic material granules, characterized in that, include: Tank (1), the exhaust gas enters the interior of the tank (1) from the lower end of the tank (1) and is discharged from the upper end of the tank (1). The lower end of the tank (1) is also provided with a discharge pipe for discharging the purified liquid. Multiple spraying assemblies are distributed along the axial direction of the tank (1) inside the tank (1), and the spraying assemblies include: The spraying section is fixedly installed inside the tank (1) and is used to spray the purification liquid downwards; The guide section is fixedly installed inside the tank (1) to guide the exhaust gas and extend the movement trajectory of the exhaust gas; The flow guide includes: The fixing plate (2) has multiple through holes (3), and each through hole (3) is fixedly connected to multiple guide plates (4), which are spirally distributed on the inner sidewall of the through hole (3). The upper and lower openings of the through-hole (3) are spirally staggered. The lower end of the tank (1) is fixedly connected to a flow equalization frame (7), and the upper end face of the flow equalization frame (7) is provided with multiple unidirectional air outlets (8). Each of the vent holes (8) is provided with a spring piece (9) on its upper side.

2. The waste gas treatment system for the production of magnetic material granules as described in claim 1, characterized in that, The guide plate (4) is twisted, with one side being higher than the other.

3. The waste gas treatment system for the production of magnetic material granules as described in claim 1, characterized in that, The spraying unit includes: The ring pipe (5) is fixedly installed inside the tank body (1) and is connected to the external lifting pump; Multiple branch pipes (6) are fixedly connected inside the ring pipe (5) and are parallel to each other; The branch pipe (6) and the ring pipe (5) are provided with multiple spray holes on their lower sides.

4. The waste gas treatment system for the production of magnetic material granules as described in claim 3, characterized in that, The projections of multiple branch pipes (6) in two adjacent spray sections are perpendicular to each other.

5. The waste gas treatment system for the production of magnetic material granules as described in claim 1, characterized in that, The flow equalization frame (7) is connected to the external waste gas collection equipment through a connecting pipe.

6. The waste gas treatment system for the production of magnetic material granules as described in claim 5, characterized in that, The upper surface of the flow equalization frame (7) is an arch shape with a convex shape in the middle.

7. The waste gas treatment system for the production of magnetic material granules as described in claim 5, characterized in that, One side of the spring sheet (9) is fixedly connected to the flow equalization frame (7), and the rest of the spring sheet is attached to the upper surface of the flow equalization frame (7) under its own elastic force.

8. The waste gas treatment system for the production of magnetic material granules as described in claim 1, characterized in that, The upper end face of the tank (1) is provided with an opening, and a filter frame (10) is fixedly connected to the opening. The filter frame (10) is filled with activated carbon.

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