Tail gas washing device for compound fertilizer processing

Abstract

The utility model discloses a tail gas washing device for compound fertilizer processing, which belongs to the technical field of tail gas treatment equipment and comprises a tower body, a primary filtering device is arranged at one end of a gas inlet pipe and comprises a round pipe, rectangular grooves are formed in two sides of the inner wall of the round pipe, a clamping groove is formed in one end of the inner wall of each rectangular groove, and a gas inlet pipe is arranged in the clamping groove. The primary filtering device is arranged, a round pipe is installed at one end of an air inlet pipe, tail gas passes through a filter screen plate, impurity particles in the tail gas can be further filtered through filter screens on the two sides of the filter screen plate, impurities are blocked on the surface of the filter screen plate, and the tail gas is filtered through the filter screen plate. Organic waste gas in the tail gas is adsorbed through an activated carbon adsorption core in the filter screen plate, the tail gas is further filtered, and the content of particle impurities in the tail gas is reduced as much as possible, so that the particle impurities are prevented from entering the tower body to influence the washing effect in the tower body, and the treatment effect of the washing device is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to tail gas treatment equipment technical field, specifically is a tail gas washing unit for compound fertilizer processing. BACKGROUND

[0002] The compound fertilizer is the chemical fertilizer that contains crop nutrient element nitrogen, phosphorus, potassium any two or three of the method and mixed method, compound fertilizer processing process can produce a variety of tail gas, mainly including dust, ammonia, hydrogen sulfide, volatile organic compounds, sulfur dioxide, nitrogen oxides and other pollutants, therefore needs to use washing unit to treat the waste gas generated in production in the production process of compound fertilizer.

[0003] When treating waste gas, usually first pretreats tail gas to remove large particle dust in waste gas, then through spray tower, absorbs ammonia, hydrogen sulfide and other gases with acidic or alkaline solution, washes and treats waste gas.

[0004] When tail gas enters the inside of spray equipment through pipeline to carry out washing, the tail gas after treatment can still contain particulate dust and other impurities, these impurities enter the inside of spray tower, increase the load of filler to treat pollutants in tail gas, cause the surface of filler to be blocked, influence the movement of tail gas in the inside of spray tower, lead to the use effect of washing unit to decline. UTILITY MODEL CONTENTS

[0005] (I) the technical problem solved

[0006] In order to overcome the above-mentioned defects of prior art, the utility model provides a tail gas washing unit for compound fertilizer processing, solves the problem that the tail gas after treatment can still contain particulate dust and other impurities, these impurities enter the inside of spray tower, increase the load of filler to treat pollutants in tail gas, cause the surface of filler to be blocked, influence the movement of tail gas in the inside of spray tower, lead to the use effect of washing unit to decline.

[0007] (II) technical scheme

[0008] In order to achieve the above object, the utility model provides the following technical scheme: a tail gas washing device for compound fertilizer processing, including the tower body, one side and the top of the tower body are provided with air inlet pipe and gas pipe respectively, the one end of gas pipe is connected with the fan away from the tower body, the one side of fan is provided with exhaust pipe, one side of the tower body is provided with pump, one end of pump is provided with a plurality of pipeline connected with the inside of tower body, one end of air inlet pipe is provided with primary filter device, primary filter device includes round pipe, the round pipe is connected with air inlet pipe through flange, the both sides of the inner wall of round pipe are equipped with rectangular groove, the inner wall of rectangular groove one end is equipped with the slot, the inner wall of rectangular groove is equipped with the slot rod of sliding insertion, the side of two slot rods is fixedly connected with the filter screen board of mutual approaching, the inside of filter screen board is provided with activated carbon adsorption core, the both sides of activated carbon adsorption core are wrapped in filter screen board, one end of slot rod is rotatably connected with the shaft, the bottom of the shaft is provided with the volute spring, the both ends of volute spring are fixedly connected with the one side of the shaft and the inner wall of slot rod, the outer surface of the shaft is fixedly connected with the clamping block.

[0009] As a further scheme of the utility model: the edge of the one end of the clamping block away from the shaft is arc-shaped.

[0010] As a further scheme of the utility model: one side of the clamping block is fixedly connected with the pull rope, the inner wall one end of the slot rod is threadedly connected with the screw rod, the outer surface of the screw rod is fixedly connected with the slot ring, one end of the pull rope away from the clamping block is fixedly connected with one side of the slot ring.

[0011] As a further scheme of the utility model: the pull rope is made of carbon fiber material.

[0012] As a further scheme of the utility model: one end of the screw rod is fixedly connected with the operating block, the outer surface of the operating block is provided with a plurality of protrusions.

[0013] As a further scheme of the utility model: one end of the slot rod is provided with the protection device, the protection device includes the sliding block, the sliding block is in the inner wall one end of the slot rod sliding, one end of the sliding block is fixedly connected with two magnetic blocks, the side of the slot rod close to the sliding block is equipped with two insertion holes, the inner wall of insertion hole is provided with metal iron sheet.

[0014] As a further scheme of the utility model: one side of the sliding block is fixedly connected with the recess, the recess is located in the one end of the sliding block close to the magnetic block.

[0015] (Three) beneficial effects

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] 1. The tail gas washing device for compound fertilizer processing, through the setting of the primary filter device, the circular pipe is installed at one end of the air inlet pipe, the tail gas passes through the filter screen plate, the impurity particles in the tail gas are further filtered through the filter screen on both sides of the filter screen plate, the impurities are blocked on the surface of the filter screen plate, the organic waste gas in the tail gas is adsorbed and treated through the activated carbon adsorption core in the filter screen plate, the tail gas is further filtered, the particle impurity content in the tail gas is reduced as much as possible, and the particle impurities are prevented from entering the tower body to affect the washing effect in the tower body, and the treatment effect of the washing device is improved.

[0018] 2. The tail gas washing device for compound fertilizer processing, the pull rope is wound on the surface of the groove ring by rotating the screw rod, the clamping block is rotated inwards, the groove rod is taken out from the inside of the rectangular groove by the groove rod, and the filter screen plate is cleaned.

[0019] 3. The tail gas washing device for compound fertilizer processing, the protection device is arranged, the two magnetic blocks at one end of the sliding block are inserted into the two insertion holes on the outer surface of the groove rod by moving the sliding block, and one end of the groove rod is covered, so that the tail gas is prevented from entering the inside of the groove rod and affecting the normal use of the screw rod. DETAILED DESCRIPTION

[0020] Figure 1 It is a structure schematic view of the utility model;

[0021] Figure 2 It is a structure schematic view of the air inlet pipe of the utility model;

[0022] Figure 3 It is a structure schematic view of the circular pipe of the utility model;

[0023] Figure 4 It is a local section structure schematic view of the filter screen plate of the utility model;

[0024] Figure 5 It is a structure schematic view of the groove rod of the utility model.

[0025] In the drawing: 1, tower body; 2, primary filter device; 3, protection device; 4, air inlet pipe; 5, gas conveying pipe; 6, fan; 7, exhaust pipe; 8, pump; 21, circular pipe; 22, rectangular groove; 23, clamping groove; 24, groove rod; 25, filter screen plate; 26, activated carbon adsorption core; 27, rotating shaft; 28, coil spring; 29, clamping block; 210, pull rope; 211, screw rod; 212, groove ring; 213, operating block; 31, sliding block; 32, insertion hole; 33, magnetic block; 34, recess. DETAILED DESCRIPTION

[0026] The technical scheme of the patent will be further described in detail in combination with specific implementation manners.

[0027] As Figures 1-4As shown, the utility model provides a kind of technical scheme: a tail gas washing device for compound fertilizer processing, including tower body 1, the side and top end of tower body 1 are provided with air inlet pipe 4 and gas delivery pipe 5 respectively, the end, away from tower body 1, of gas delivery pipe 5 is connected with fan 6, the side of fan 6 is provided with exhaust pipe 7, the side of tower body 1 is provided with pump 8, the one end of pump 8 is provided with several with the pipe of the inside connection of tower body 1, the one end of air inlet pipe 4 is provided with primary filter device 2, primary filter device 2 includes round pipe 21, and round pipe 21 is connected with air inlet pipe 4 by flange, and the inner wall both sides of round pipe 21 are provided with rectangular groove 22, and the inner wall one end of rectangular groove 22 is provided with slot 23, and the inner wall sliding of rectangular groove 22 is provided with slot rod 24, and the side of two slot rods 24, mutually close, is fixedly connected with filter screen plate 25, and the inside of filter screen plate 25 is provided with activated carbon adsorption core 26, and filter screen plate 25 is wrapped in the both sides of activated carbon adsorption core 26, and the one end of slot rod 24 is rotatably connected with rotating shaft 27, and the bottom end of rotating shaft 27 is provided with coil spring 28, and the both ends of coil spring 28 are respectively fixedly connected with the side of rotating shaft 27 and the inner wall side of slot rod 24, and the outer surface of rotating shaft 27 is fixedly connected with clamping block 29, by setting clamping block 29, when installing washing device, can first be in the one end of air inlet pipe 4 by flange round pipe 21 is connected with air inlet pipe 4, subsequently in the inner wall one end of round pipe 21 two slot rods 24 are inserted into two rectangular grooves 22 respectively, slot rod 24 is moved in the inside of rectangular groove 22, and the one end of slot rod 24 is contacted with the inner wall one end of rectangular groove 22 when, and the coil spring 28 of rotating shaft 27 outer surface restores original shape and drives rotating shaft 27 and clamping block 29 to rotate outward, and clamping block 29 is clamped into slot 23 inside, and slot rod 24 is fixed in the inside of rectangular groove 22, and filter screen plate 25 is fixed in the inside of round pipe 21, when using washing device, tail gas delivery pipe is connected with the one end of round pipe 21 by flange, and spray water delivery pipe is connected with the pipe of the one end of pump 8, fan 6 and pump 8 are operated, and spray water is sent to the inside of tower body 1 by pump 8, and drops on the surface of packing layer in the inside of tower body 1, and tail gas is transported to the bottom end in the inside of tower body 1 by conveying equipment through round pipe 21 and air inlet pipe 4, when tail gas passes through the inside of round pipe 21, further filtration of impurity particles in tail gas can be carried out by the filter screen of the both sides of filter screen plate 25, and impurities are blocked on the surface of filter screen plate 25, and activated carbon adsorption core 26 in the inside of filter screen plate 25 is used to adsorb and treat organic waste gas in tail gas, after tail gas enters the inside of tower body 1, and flows from bottom to top in the inside of tower body 1, and is fully contacted with liquid film and liquid drop when passing through packing layer, in this process, harmful substances in tail gas are absorbed or chemically reacted by liquid, and are converted into harmless or low-harm substances, subsequently move to the top end of tower body 1, and the converted gas is sucked into gas delivery pipe 5 by fan 6 and is discharged through exhaust pipe 7, by setting primary filter device 2, by installing round pipe 21 in the one end of air inlet pipe 4,The impurity particles in the tail gas can be further filtered through the filter screens on both sides of the filter screen plate 25, and the impurities are blocked on the surface of the filter screen plate 25. The activated carbon adsorption core 26 inside the filter screen plate 25 can adsorb and treat the organic waste gas in the tail gas, further filter the tail gas, and as much as possible reduce the content of particulate impurities in the tail gas, so as to avoid the particulate impurities from entering the tower body 1 and affecting the washing effect inside the tower body 1, and improve the treatment effect of the washing device.

[0028] Specifically, as shown in Figures 2-5 , the end edge of the clamping block 29 away from the rotating shaft 27 is arc-shaped. By setting the end edge of the clamping block 29 away from the rotating shaft 27 to be arc-shaped, when the slot rod 24 is inserted into the rectangular slot 22, the end of the clamping block 29 is attached to the inner wall of the rectangular slot 22, and the movement is more smooth. When the end of the slot rod 24 contacts the end of the inner wall of the rectangular slot 22, the clamping block 29 is more easily turned into the clamping groove 23.

[0029] Specifically, as shown in Figures 2-5 , one side of the clamping block 29 is fixedly connected with a pull rope 210, and the inner wall of the slot rod 24 is threadedly connected with a screw rod 211. The outer surface of the screw rod 211 is fixedly connected with a slot ring 212, and the end of the pull rope 210 away from the clamping block 29 is fixedly connected with one side of the slot ring 212. When it is necessary to remove the filter screen plate 25 for cleaning, the screw rod 211 is rotated at one end of the slot rod 24 to control the movement of the screw rod 211 in the inner wall of the slot rod 24. The pull rope 210 is wound on the surface of the slot ring 212, and the clamping block 29 is pulled inward by the pull rope 210 until the screw rod 211 cannot be rotated. Then the slot rod 24 can be pulled out from the inside of the rectangular slot 22, and the filter screen plate 25 can be removed for cleaning. The pull rope 210 is made of carbon fiber material, which can as much as possible avoid the influence of high-temperature tail gas on the pull rope 210 and make the pull rope 210 have a longer service life. One end of the screw rod 211 is fixedly connected with an operating block 213, and the outer surface of the operating block 213 is provided with a plurality of protrusions. Gripping the protrusions on the outer surface of the operating block 213 can more conveniently rotate the operating block 213 to control the rotation of the screw rod 211 and prevent hand slipping.

[0030] Specifically, as shown in Figure 2 and Figure 5As shown, one end of the slot rod 24 is provided with a protection device 3, the protection device 3 includes a sliding block 31 sliding at one end of the inner wall of the slot rod 24, one end of the sliding block 31 is fixedly connected with two magnetic blocks 33, two insertion holes 32 are formed in the side of the slot rod 24 close to the sliding block 31, and metal iron sheets are arranged on the inner walls of the insertion holes 32, after the slot rod 24 is installed in the circular pipe 21, the sliding block 31 can be pushed to move at one end of the slot rod 24, the two magnetic blocks 33 at one end of the sliding block 31 are inserted into the two insertion holes 32 on the outer surface of the slot rod 24 and are magnetically adsorbed with the iron sheets in the insertion holes 32, the position of the sliding block 31 at one end of the slot rod 24 is fixed, the one end of the slot rod 24 is covered by the sliding block 31, and the exhaust gas is as far as possible to avoid entering the inside of the slot rod 24 to affect the normal use of the screw rod 211, one side of the sliding block 31 is fixedly connected with a groove 34, the groove 34 is located at one end of the sliding block 31 close to the magnetic block 33, and the sliding block 31 can be more conveniently pushed or pulled to control the moving position of the sliding block 31 by abutting the groove 34 on the outer surface of the sliding block 31.

[0031] The working principle of the utility model is:

[0032] S1, when installing the washing device, the circular pipe 21 can be connected with the air inlet pipe 4 through the flange at one end of the air inlet pipe 4, then the two slot rods 24 are inserted into the two rectangular grooves 22 respectively at one end of the inner wall of the circular pipe 21, the slot rods 24 are pushed to move in the rectangular grooves 22, one end of the clamping block 29 abuts against one side of the inner wall of the rectangular groove 22 and rotates inwards through the rotating shaft 27 while making the coil spring 28 deform during the movement of the slot rod 24, when one end of the slot rod 24 contacts one end of the inner wall of the rectangular groove 22, the coil spring 28 on the outer surface of the rotating shaft 27 restores the original state and drives the rotating shaft 27 and the clamping block 29 to rotate outwards, the clamping block 29 is clamped into the clamping groove 23, the slot rod 24 is fixed in the rectangular groove 22, the filter screen plate 25 is fixed in the circular pipe 21, then the sliding block 31 is pushed to move at one end of the slot rod 24, the two magnetic blocks 33 at one end of the sliding block 31 are inserted into the two insertion holes 32 on the outer surface of the slot rod 24 and are magnetically adsorbed with the iron sheets in the insertion holes 32, the position of the sliding block 31 at one end of the slot rod 24 is fixed, and one end of the slot rod 24 is covered by the sliding block 31;

[0033] S2, when using the washing device, the tail gas conveying pipeline is connected with one end of the circular pipe 21 through the flange, the spraying water conveying pipeline is connected with the pipeline at one end of the pump 8, the fan 6 and the pump 8 are operated, the spraying water is sent to the inside of the tower body 1 through the pump 8, and is dropped on the surface of the filler layer in the inside of the tower body 1; the conveying equipment conveys the tail gas to the bottom end in the inside of the tower body 1 through the circular pipe 21 and the gas inlet pipe 4; when the tail gas passes through the inside of the circular pipe 21, the impurity particles in the tail gas can be further filtered through the filter screens on the two sides of the filter screen plate 25, so that the impurities are blocked on the surface of the filter screen plate 25, and the organic waste gas in the tail gas is adsorbed and treated through the activated carbon adsorption core 26 in the inside of the filter screen plate 25; after the tail gas enters the inside of the tower body 1, the tail gas flows from bottom to top in the inside of the tower body 1, is fully contacted with the liquid film and the liquid drop when passing through the filler layer, in the process, the harmful substances in the tail gas are absorbed by the liquid or are chemically reacted to be converted into harmless or low-harm substances, and then move to the top end of the tower body 1, the converted gas is sucked into the gas conveying pipe 5 through the fan 6 and is discharged through the exhaust pipe 7; when the filter screen plate 25 needs to be disassembled for cleaning, the screw rod 211 is controlled to move in the inner wall of the groove rod 24 by rotating the screw rod 211 at one end of the groove rod 24, the pull rope 210 is wound on the surface of the groove ring 212 through the groove ring 212, and the clamping block 29 is pulled inwards until the screw rod 211 cannot be rotated, and then the groove rod 24 is pulled out from the inside of the rectangular groove 22 to take out the filter screen plate 25 for cleaning.

[0034] In the description of the utility model, it needs to explain, unless another explicit stipulation and limitation, term " install " " link " " connection " should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can be indirectly connected through intermediate medium, can be the intercommunication of two elements. For ordinary skilled person in the art, the above-mentioned terms can be understood by the specific meaning in the utility model by specific circumstances.

[0035] The preferred embodiments of the patent are described in detail above, but the patent is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge of ordinary skilled person in the art without departing from the purpose of the patent.

Claims

1. A tail gas scrubbing device for compound fertilizer processing, comprising a tower body (1), characterized in that: An air inlet pipe (4) and an air delivery pipe (5) are respectively provided on one side and at the top of the tower body (1). A fan (6) is connected to the end of the air delivery pipe (5) away from the tower body (1). An exhaust pipe (7) is provided on one side of the fan (6). A pump (8) is provided on one side of the tower body (1). Several pipes connected to the inside of the tower body (1) are provided at one end of the pump (8). A primary filter device (2) is provided at one end of the air inlet pipe (4). The primary filter device (2) includes a circular pipe (21). The circular pipe (21) is connected to the air inlet pipe (4) through a flange. Rectangular grooves (22) are opened on both sides of the inner wall of the circular pipe (21). The inner wall of the rectangular grooves (22) A slot (23) is provided at one end. A groove rod (24) is slidably inserted into the inner wall of the rectangular groove (22). A filter plate (25) is fixedly connected to the side of the two groove rods (24) that are close to each other. An activated carbon adsorption core (26) is provided inside the filter plate (25). The filter plate (25) wraps around both sides of the activated carbon adsorption core (26). A rotating shaft (27) is rotatably connected to one end of the groove rod (24). A coil spring (28) is provided at the bottom end of the rotating shaft (27). The two ends of the coil spring (28) are fixedly connected to one side of the rotating shaft (27) and one side of the inner wall of the groove rod (24), respectively. A locking block (29) is fixedly connected to the outer surface of the rotating shaft (27).

2. The exhaust gas scrubbing device for compound fertilizer processing according to claim 1, characterized in that: The edge of the card block (29) away from the rotating shaft (27) is arc-shaped.

3. The exhaust gas scrubbing device for compound fertilizer processing according to claim 2, characterized in that: A pull rope (210) is fixedly connected to one side of the locking block (29), a screw (211) is threaded to one end of the inner wall of the groove rod (24), a grooved ring (212) is fixedly connected to the outer surface of the screw (211), and the end of the pull rope (210) away from the locking block (29) is fixedly connected to one side of the grooved ring (212).

4. The exhaust gas scrubbing device for compound fertilizer processing according to claim 3, characterized in that: The pull rope (210) is made of carbon fiber.

5. The exhaust gas scrubbing device for compound fertilizer processing according to claim 4, characterized in that: One end of the screw (211) is fixedly connected to an operating block (213), and the outer surface of the operating block (213) is provided with several protrusions.

6. The exhaust gas scrubbing device for compound fertilizer processing according to claim 5, characterized in that: A protective device (3) is provided at one end of the groove rod (24). The protective device (3) includes a slider (31). The slider (31) slides on one end of the inner wall of the groove rod (24). Two magnetic blocks (33) are fixedly connected to one end of the slider (31). Two insertion holes (32) are opened on the side of the groove rod (24) near the slider (31). Metal iron sheets are provided on the inner wall of the insertion holes (32).

7. The exhaust gas scrubbing device for compound fertilizer processing according to claim 6, characterized in that: A groove (34) is fixedly connected to one side of the slider (31), and the groove (34) is located at the end of the slider (31) near the magnet (33).

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