Decompression explosion-proof waste gas purification spray tower

Abstract

The utility model discloses an explosion-proof waste gas purification spray tower capable of reducing pressure, which belongs to the field of waste gas treatment and comprises a tower body, a gas inlet and a gas outlet which are communicated with the inside of the tower body are respectively arranged on one side and the top of the tower body, and a spray component is arranged on the tower body. The air inlet is provided with a pressure-reducing explosion-proof mechanism used for filtering impurities and adjusting the air inlet flow, the pressure-reducing explosion-proof mechanism comprises a mounting cylinder coaxially arranged with the air inlet, and a filter screen and an air inlet adjusting assembly are sequentially arranged in the mounting cylinder in the direction facing the air inlet; and an anti-blocking assembly for cleaning the filter screen is arranged on the mounting cylinder. According to the waste gas purification spray tower capable of reducing pressure and preventing explosion, residual particulate matters and dust in waste gas can be prevented from entering the spray tower through the pressure reducing and explosion preventing mechanism, so that impurity accumulation is avoided, the explosion risk is reduced, and the phenomenon that the pressure in the tower is too high due to too large air volume can be avoided by reasonably controlling the air volume.

Description

TECHNICAL FIELD

[0001] The utility model relates to waste gas treatment technical field especially relates to a waste gas purification spray tower of pressure reduction explosion -proof. BACKGROUND

[0002] Waste gas purification spray tower, also known as washing tower, absorption tower or purification tower, is a kind of efficient waste gas treatment equipment, its principle is mainly using the counter current contact between gas and liquid, through the spraying and stirring action of liquid, makes the pollutant and liquid form chemical reaction or physical adsorption, to achieve the purpose of purifying waste gas, commonly used for treating waste gas discharged by chemical plant, power plant, metallurgical plant, mine etc.

[0003] When spray tower carries out waste gas purification treatment, waste gas will be filtered by filter structure, but there are still particulate matter, dust and other impurities in treated waste gas, these impurities enter spray tower and accumulate in tower, block the packing layer of spray tower, affect the distribution of spray liquid and the contact effect of waste gas and spray liquid, and waste gas enters spray tower by induced draft fan, and the pressure in tower is too high due to excessive air volume, so that spray tower exists the risk of damage or explosion due to excessive local pressure. SUMMARY

[0004] The utility model discloses a waste gas purification spray tower of pressure reduction explosion -proof, which can solve the problem of blockage caused by impurities in waste gas and the problem of excessive pressure in the tower caused by excessive air volume, and can reduce the risk of damage or explosion of the spray tower due to excessive local pressure.

[0005] To achieve the above object, the utility model adopts the following technology: a waste gas purification spray tower of pressure reduction explosion -proof, comprising a tower body, a gas inlet and a gas outlet are arranged on one side and the top of the tower body respectively and are communicated with the inside of the tower body, a spray assembly is arranged on the tower body, and a pressure reduction explosion -proof mechanism for impurity filtration and inlet air flow adjustment is arranged on the gas inlet.

[0006] As a further description of the above technical scheme: the pressure reduction explosion -proof mechanism comprises a mounting cylinder coaxially arranged with the gas inlet, and a filter screen and an inlet air adjusting assembly are arranged in the mounting cylinder in sequence towards the direction of the gas inlet.

[0007] As a further description of the above technical scheme: a jam -preventing assembly for filter screen cleaning is arranged on the mounting cylinder.

[0008] The jam -preventing assembly comprises a connecting shaft arranged along the axis of the mounting cylinder through a bearing frame, a turbine fan is arranged on the connecting shaft, and a cleaning piece is in contact with the filter screen.

[0009] As a further description of the above technical solution: the cleaning piece includes a mounting sleeve fixed on the connecting shaft, and a brush abutting against the surface of the filter screen is arranged on the mounting sleeve through a connecting plate.

[0010] As a further description of the above technical solution: the pressure reduction explosion-proof mechanism further includes a collecting assembly.

[0011] The collecting assembly includes a connecting box in communication with the mounting cylinder, a collecting drawer is arranged on the connecting box, a positioning bolt is arranged on one side of the connecting box, and a positioning screw hole matched with the positioning bolt is formed in the collecting drawer.

[0012] As a further description of the above technical solution: the air inlet adjusting assembly includes a motor arranged outside the mounting cylinder through a mounting seat, and a valve plate matched with the mounting cylinder is arranged on an output end of the motor through a valve rod.

[0013] As a further description of the above technical solution: the spraying assembly includes a circulating pump, a spraying head located inside the tower body is arranged on an outlet end of the circulating pump through a spraying pipe, and a pressure reduction valve is arranged on the spraying pipe.

[0014] As described above, due to the adoption of the above technical solution, the beneficial effects of the present application are:

[0015] The pressure reduction explosion-proof mechanism can avoid the residual particulate matters and dust in the exhaust gas from entering the spray tower, thereby avoiding the accumulation of impurities and preventing the blockage of the filler layer in the spray tower caused by the impurities, so as to avoid the excessive local pressure caused by the blockage, and by reasonably controlling the air volume, the excessively high pressure in the tower caused by the excessive air volume can be avoided, and the risk of damage and explosion of the spray tower caused by the excessively high pressure can be effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 An overall structure schematic diagram is shown according to an embodiment of the present application;

[0017] Figure 2 A structure schematic diagram of the pressure reduction explosion-proof mechanism is shown according to an embodiment of the present application; Figure One ;

[0018] Figure 3 A structure schematic diagram of the pressure reduction explosion-proof mechanism is shown according to an embodiment of the present application; Figure Two ;

[0019] Figure 4 A structure schematic diagram of the anti-blocking assembly is shown according to an embodiment of the present application;

[0020] Figure 5 A structure schematic diagram of the cleaning piece is shown according to an embodiment of the present application;

[0021] Figure 6 A structure schematic view of a collecting assembly is shown according to an embodiment of the present application;

[0022] Figure 7 A structure schematic view of an air inlet adjusting assembly is shown according to an embodiment of the present application;

[0023] Figure 8 A structure schematic view of a spraying assembly is shown according to an embodiment of the present application.

[0024] Legend:

[0025] 1, tower body; 2, air inlet; 3, air outlet; 4, spraying assembly; 41, circulating pump; 42, spraying pipe; 43, spraying head; 44, pressure reducing valve; 5, pressure reducing and explosion-proof mechanism; 51, mounting cylinder; 52, filter screen; 53, air inlet adjusting assembly; 531, mounting seat; 532, motor; 533, valve rod; 534, valve plate; 54, collecting assembly; 541, connecting box; 542, collecting drawer; 543, positioning bolt; 544, positioning screw hole; 55, anti-blocking assembly; 551, bearing frame; 552, connecting shaft; 553, turbine fan; 554, cleaning piece; 5541, mounting sleeve; 5542, connecting plate; 5543, brush. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] With reference to Figures 1-8 The present embodiment provides a waste gas purification spraying tower capable of reducing pressure and explosion-proof, which comprises a tower body 1, one side and a top of the tower body 1 are respectively provided with an air inlet 2 and an air outlet 3 which are in communication with the inside of the tower body 1, the tower body 1 is provided with a spraying assembly 4, the spraying assembly 4 comprises a circulating pump 41, a spraying head 43 located in the inside of the tower body 1 is arranged on the outlet end of the circulating pump 41 through a spraying pipe 42, and a pressure reducing valve 44 is arranged on the spraying pipe 42.

[0028] The utility model discloses a waste gas purification tower, including the tower body 1 of waste gas purification, the fan 4 of waste gas exhaust, the air inlet 2 of waste gas import, the air outlet 3 of waste gas export, the spray pipe 42 of spray liquid import, the spray head 43 of spray liquid export, the circulating pump 41 of spray liquid circulation, the pressure reducing valve 44 of spray liquid pressure adjustment, the demisting plate 6 of spray liquid demisting.

[0029] Specifically, as shown in Figures 1-3 、 Figure 7 The air inlet 2 is provided with a pressure reducing and explosion-proof mechanism 5 for impurity filtration and air inlet flow adjustment, the pressure reducing and explosion-proof mechanism 5 comprises a mounting cylinder 51 coaxially arranged with the air inlet 2, a filter screen 52 and an air inlet adjustment assembly 53 are sequentially arranged in the mounting cylinder 51 towards the direction of the air inlet 2, the air inlet adjustment assembly 53 comprises a motor 532 arranged outside the mounting cylinder 51 through a mounting seat 531, and a valve plate 534 cooperating with the mounting cylinder 51 is arranged on the output end of the motor 532 through a valve rod 533.

[0030] The mounting cylinder 51 is connected to the air inlet 2 through a flange, the waste gas passes through the mounting cylinder 51 when entering the tower body 1, the filter screen 52 in the mounting cylinder 51 is made of activated carbon and can adsorb the impurities such as particulate matters and dust remaining in the waste gas, so as to avoid the impurities from entering the tower body 1 and causing the blockage of the filler layer, thereby avoiding the excessive local pressure in the tower body 1 caused by the blockage, when the waste gas enters, the valve plate 534 on the valve rod 533 is driven to rotate by the motor 532 on the mounting seat 531, so as to adjust the flow area of the mounting cylinder 51 and the air inlet flow of the waste gas, and by reasonably controlling the air volume, the excessive pressure in the tower caused by the excessive air volume can be avoided, and the risk of damage and explosion of the spray tower caused by the excessive pressure can be effectively reduced.

[0031] Specifically, as shown in Figures 2-5 The mounting cylinder 51 is provided with a blockage prevention assembly 55 for cleaning the filter screen 52, the blockage prevention assembly 55 comprises a connecting shaft 552 arranged along the axis of the mounting cylinder 51 through a bearing frame 551, a turbine fan 553 and a cleaning piece 554 in contact with the filter screen 52 are arranged on the connecting shaft 552, the cleaning piece 554 comprises a mounting sleeve 5541 fixed on the connecting shaft 552, and a brush 5543 abutting against the surface of the filter screen 52 is arranged on the mounting sleeve 5541 through a connecting plate 5542.

[0032] Wherein, the exhaust gas under the action of induced draft fan high-speed into the installation cylinder 51, under the impact of the exhaust gas flow makes the turbine fan 553 on the connecting shaft 552 rotation, turbine fan 553 drive connecting shaft 552 rotation between bearing frame 551, and drive the connecting shaft 552 on the cleaning element 554 rotation, cleaning element 554 rotation, the connecting plate 5542 on the brush 5543 will filter screen 52 on the filter particles and dust and other impurities down, thereby avoiding these impurities in the filter screen 52 filter hole edge accumulation caused by filter screen 52 blockage, ensure that the filter screen 52 can efficiently filter the remaining impurities in the exhaust gas down.

[0033] Specifically, as shown in Figure 2 、 Figure 3 and Figure 6 , the pressure relief explosion-proof mechanism 5 also includes a collection assembly 54, the collection assembly 54 includes a connecting box 541 connected with the installation cylinder 51, the connecting box 541 is provided with a collection drawer 542, one side of the connecting box 541 is provided with a positioning bolt 543, and the collection drawer 542 is provided with a positioning screw hole 544 matched with the positioning bolt 543.

[0034] Wherein, the impurities filtered on the filter screen 52 will fall into the collection drawer 542 of the connecting box 541 under the action of gravity after being brushed down by the cleaning element 554, after collecting to a certain extent, the positioning bolt 543 on the connecting box 541 is unscrewed, so that the positioning bolt 543 is separated from the positioning screw hole 544 of the collection drawer 542, then the collection drawer 542 is taken out from the connecting box 541 for dumping treatment of impurities.

[0035] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art according to the technical scheme and the utility model concept of the present application within the technical range disclosed by the present application makes equivalent replacement or change, should be covered in the protection scope of the present application.

Claims

1. A pressure-reducing and explosion-proof exhaust gas cleaning spray tower, characterized in that, The utility model relates to a tower body (1), one side and top of the tower body (1) are equipped with air inlet (2) and air outlet (3) respectively with its inside intercommunication, be equipped with spray subassembly (4) on the tower body (1), be equipped with pressure relief explosion -proof mechanism (5) for impurity filtration and air inlet flow regulation on the air inlet (2).

2. The pressure-relief and explosion-proof exhaust gas purification spray tower according to claim 1, characterized in that, The pressure relief explosion -proof mechanism (5) includes the installation cylinder (51) coaxially arranged with the air inlet (2), the inside of installation cylinder (51) is arranged with filter screen (52) and air inlet adjusting assembly (53) in turn towards the direction of air inlet (2).

3. The pressure-relief and explosion-proof exhaust gas cleaning spray tower according to claim 2, characterized in that The installation cylinder (51) is equipped with anti -blocking subassembly (55) for filter screen (52) cleaning; The anti -blocking subassembly (55) includes the connecting shaft (552) along the axis of installation cylinder (51) by bearing frame (551) arrangement, the connecting shaft (552) is equipped with turbine fan (553), and the cleaning part (554) is in contact with filter screen (52).

4. The pressure-relief and explosion-proof exhaust gas cleaning spray tower according to claim 3, characterized in that The cleaning part (554) includes the mounting sleeve (5541) fixed on the connecting shaft (552), the mounting sleeve (5541) is equipped with the brush (5543) of abutting on the surface of filter screen (52) through the connecting plate (5542) on it.

5. A vented, pressure-reducing exhaust gas cleaning spray tower according to claim 4, characterized in that The pressure relief explosion -proof mechanism (5) further includes collection assembly (54); The collection assembly (54) includes the connecting box (541) intercommunication with installation cylinder (51), the connecting box (541) is equipped with collection drawer (542), one side of connecting box (541) is equipped with positioning bolt (543), and the collection drawer (542) is opened with the positioning screw hole (544) matched with positioning bolt (543).

6. The pressure-relief and explosion-proof exhaust gas cleaning spray tower according to claim 2, characterized in that The air inlet adjusting assembly (53) includes the motor (532) arranged outside installation cylinder (51) through mounting seat (531), and the valve plate (534) matched with installation cylinder (51) is arranged on the output end of motor (532) through valve rod (533).

7. The pressure-relief and explosion-proof exhaust gas cleaning spray tower according to claim 1, characterized in that, The spray subassembly (4) includes circulating pump (41), and the spray head (43) in the inside of tower body (1) is arranged on the outlet end of circulating pump (41) through spray pipe (42), and the pressure reducing valve (44) is arranged on the spray pipe (42).

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