Hydrochloric acid mist removing and collecting device

Abstract

The utility model belongs to the field of acid mist removing and recycling equipment, and particularly relates to a hydrochloric acid mist removing and collecting device which comprises a liquid collecting box, a liquid outlet is formed in the side wall of the liquid collecting box, the top of the liquid collecting box is connected with a sleeve type absorption tank body, and a lower port of the absorption tank body is communicated with the interior of the liquid collecting box. A gas-liquid separator, a spraying pipeline and a filler layer are sequentially and fixedly connected to the interior of the absorption tank body from top to bottom, a spraying head is mounted at the bottom of the spraying pipeline, a water inlet communicated with the spraying pipeline is connected to the upper end of the side wall of the absorption tank body, and a gas inlet located below the filler layer is formed in the lower end of the side wall of the absorption tank body; the upper port of the absorption tank body is connected with a tank cover in a matching manner; and the tank cover is provided with an air outlet communicated with the interior of the absorption tank body. The hydrochloric acid mist removing and collecting device disclosed by the utility model is relatively low in energy consumption and relatively good in acid mist removing effect.

Description

Technical Field

[0001] The utility model relates to a hydrochloric acid mist removing and collecting device, belonging to the field of acid mist removing and recycling equipment. Background Art

[0002] In sewage treatment plants, hydrochloric acid is mainly used for chemical cleaning of equipment and to adjust the pH of the system. In the actual operation of sewage treatment plants, the loading and unloading of hydrochloric acid and the acid replenishment of high and low tanks will produce acid mist, which will be extremely corrosive to on-site equipment, undoubtedly greatly shortening the service life of the equipment and increasing the inspection, maintenance and operation costs of the equipment. At the same time, the generation of acid mist will also have a great impact on the on-site dosing environment, posing a serious threat to the health of employees.

[0003] To this end, the Chinese utility model patent with authorization announcement number CN217367737U discloses "a hydrochloric acid mist collection device, including a hydrochloric acid storage tank, the top of which is connected to a mist exhaust pipe, the other end of which is connected to a washing tower, the washing tower including a tower body of a shell structure, the lower part of the tower body is provided with an air inlet, the mist exhaust pipe is connected to the air inlet, a nozzle is provided in the tower body, the nozzle is located at the top of the washing tower, the nozzle is connected to a water pipe, the water pipe passes through the top of the tower body, the upper part of the side wall of the washing tower is connected to a circulating air pipe, the other end of the circulating air pipe is connected to the lower part of the side wall of the washing tower, and a fan is provided at the upper end of the circulating air pipe". Although it can realize the collection of acid mist, the energy consumption is relatively large due to the need to set up a fan. Utility Model Content

[0004] In view of the above deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a hydrochloric acid mist removal and collection device with low energy consumption and good acid mist removal effect.

[0005] The hydrochloric acid mist removal and collection device described in the utility model comprises a liquid collecting box, a liquid outlet is arranged on the side wall of the liquid collecting box, a sleeve-type absorption tank body is connected to the top of the liquid collecting box, a lower port of the absorption tank body is communicated with the interior of the liquid collecting box, a gas-liquid separator, a spray pipe and a packing layer are fixedly connected to the interior of the absorption tank body from top to bottom in sequence, a spray head is installed at the bottom of the spray pipe, a water inlet communicated with the spray pipe is connected to the upper end of the side wall of the absorption tank body, an air inlet located below the packing layer is arranged at the lower end of the side wall of the absorption tank body, a tank cover is matched and connected at the upper port of the absorption tank body, and an air outlet communicated with the interior of the absorption tank body is arranged on the tank cover.

[0006] Furthermore, the spray pipe is cross-shaped, and there are four spray heads, which are respectively located in the middle of four arms of the spray pipe.

[0007] Furthermore, a regulating valve is provided on the water inlet.

[0008] Furthermore, the packing layer comprises an upper grid and a lower grid fixedly connected to the inner wall of the absorption tank body, and a plurality of multi-faceted hollow balls are filled between the upper grid and the lower grid.

[0009] Furthermore, the multi-faceted hollow sphere is made of plastic.

[0010] Furthermore, the absorption tank body and the tank cover are detachably fixedly connected.

[0011] Furthermore, a step is provided at the upper port of the absorption tank body, and the step is fixedly connected to the tank cover by a plurality of bolts.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The hydrochloric acid mist removal and collection device described in the utility model can absorb the acid mist into the absorption tank body by utilizing the slight negative pressure generated by the spraying water flow at the air inlet, and the energy consumption is relatively small; moreover, a packing layer is arranged in the absorption tank body, which can increase the residence time of the acid mist in the absorption tank body, ensure a more complete contact between the acid mist and the spraying water, and achieve a better acid mist removal effect; at the same time, the arrangement of the gas-liquid separator in the absorption tank body can effectively avoid the possibility of the generated acid mist water droplets being discharged from the air outlet, and further improve the acid mist removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional structural schematic diagram of the utility model;

[0015] Figure 2 It is a bottom view of the spray pipe of the utility model.

[0016] In the figure: 1, liquid outlet; 2, liquid collecting box; 3, air inlet; 4, absorption tank body; 5, packing layer; 51, lower grille; 52, multi-faceted hollow ball; 53, upper grille; 6, step; 7, tank cover; 8, bolts; 9, air outlet; 10, gas-liquid separator; 11, spray pipe; 12, regulating valve; 13, water inlet; 14, spray head. DETAILED DESCRIPTION

[0017] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0018] Embodiment 1:

[0019] like Figure 1As shown, the hydrochloric acid mist removal and collection device described in the utility model includes a liquid collecting box 2, a liquid outlet 1 is provided on the side wall of the liquid collecting box 2, a sleeve-type absorption tank body 4 is connected to the top of the liquid collecting box 2, the lower port of the absorption tank body 4 is communicated with the interior of the liquid collecting box 2, the interior of the absorption tank body 4 is fixedly connected with a gas-liquid separator 10, a spray pipe 11 and a packing layer 5 in sequence from top to bottom, a spray head 14 is installed at the bottom of the spray pipe 11, the upper end of the side wall of the absorption tank body 4 is connected with a water inlet 13 communicated with the spray pipe 11, the lower end of the side wall of the absorption tank body 4 is provided with an air inlet 3 located below the packing layer 5, the upper port of the absorption tank body 4 is matched and connected with a tank cover 7, and the tank cover 7 is provided with an air outlet 9 communicated with the interior of the absorption tank body 4.

[0020] When in use, the liquid outlet 1 is connected to the hydrochloric acid recovery pipeline, the water inlet 13 is connected to the water supply pipeline, and the air inlet 3 is connected to the acid mist generating place through the air intake pipeline. The water of the water supply pipeline enters the spray pipe 11 through the water inlet 13, and then sprays downward through the spray head 14. The spray water falls into the liquid collecting box 2 and is discharged through the liquid outlet 1. The flow process of the spray water will generate a slight negative pressure at the air inlet 3, so that the acid mist from the hydrochloric acid storage tank and its dosing barrel enters the absorption tank body 4 through the air intake pipeline and the air inlet 3, and the acid mist flows from bottom to top and is connected with the spray head 14. Spray water for full contact and dissolution, the dissolved acid mist falls into the liquid collecting box 2 with the spray water, and is discharged to the hydrochloric acid recovery pipeline through the liquid outlet 1. The packing layer 5 can increase the residence time of the acid mist in the absorption tank body 4, ensure a more complete contact between the acid mist and the spray water, and achieve a better acid mist removal effect. The gas with the acid mist removed continues to flow upward to the gas-liquid separator 10, and the gas-liquid separator 10 can remove the acid mist droplets carried in the airflow, further improving the acid mist removal effect. Then the airflow with the acid mist removed is discharged to the atmosphere from the air outlet 9.

[0021] The hydrochloric acid mist removal and collection device described in the utility model can absorb the acid mist into the absorption tank body 4 by utilizing the slight negative pressure generated by the spraying water flow at the air inlet 3, and the energy consumption is relatively small; moreover, a packing layer 5 is arranged in the absorption tank body 4, which can increase the residence time of the acid mist in the absorption tank body 4, ensure a more complete contact between the acid mist and the spraying water, and achieve a better acid mist removal effect; at the same time, the arrangement of the gas-liquid separator 10 in the absorption tank body 4 can effectively avoid the possibility of the generated acid mist water droplets being discharged from the air outlet 9, further improving the acid mist removal effect.

[0022] Embodiment 2:

[0023] like Figure 1 , Figure 2 As shown, based on Example 1,

[0024] Furthermore, the spray pipe 11 is cross-shaped, and there are four spray heads 14, which are respectively located in the middle of four arms of the spray pipe 11. The four spray heads 14 are evenly distributed, so that the spray water is more evenly distributed, thereby better ensuring that the spray water contacts the acid mist, and improving the acid mist removal effect;

[0025] Furthermore, a regulating valve 12 is provided on the water inlet 13, and the amount of spray water can be adjusted as needed;

[0026] Furthermore, the packing layer 5 comprises an upper grid 53 and a lower grid 51 fixedly connected to the inner wall of the absorption tank body 4, and a plurality of multi-faceted hollow balls 52 are filled between the upper grid 53 and the lower grid 51. The multi-faceted hollow balls 52 can greatly increase the contact area between the acid mist and the spray water, thereby improving the acid mist removal effect;

[0027] Furthermore, the multi-faceted hollow ball 52 is made of plastic, has good hydrochloric acid corrosion resistance, is cheap, and has low cost;

[0028] Furthermore, the absorption tank body 4 and the tank cover 7 are detachably fixedly connected, and the internal structure of the absorption tank body 4 can be easily maintained by opening the tank cover 7;

[0029] Furthermore, a step 6 is provided at the upper end of the absorption tank body 4, and the step 6 is fixedly connected to the tank cover 7 by a plurality of bolts 8. The tank cover 7 can be opened by removing the bolts 8, which is very convenient to operate.

Claims

1. A hydrochloric acid mist removal and collection device, characterized in that: The invention comprises a liquid collecting box (2), wherein a liquid outlet (1) is provided on the side wall of the liquid collecting box (2), a sleeve-type absorption tank body (4) is connected to the top of the liquid collecting box (2), a lower port of the absorption tank body (4) is communicated with the interior of the liquid collecting box (2), a gas-liquid separator (10), a spray pipe (11) and a packing layer (5) are fixedly connected to the interior of the absorption tank body (4) from top to bottom, a spray head (14) is installed at the bottom of the spray pipe (11), a water inlet (13) communicated with the spray pipe (11) is connected to the upper end of the side wall of the absorption tank body (4), an air inlet (3) located below the packing layer (5) is provided at the lower end of the side wall of the absorption tank body (4), and a tank cover (7) is matched and connected to the upper port of the absorption tank body (4), and an air outlet (9) communicated with the interior of the absorption tank body (4) is provided on the tank cover (7).

2. The hydrochloric acid mist removal and collection device according to claim 1, characterized in that: The spray pipe (11) is in a cross shape, and there are four spray heads (14), which are respectively located in the middle of the four arms of the spray pipe (11).

3. The hydrochloric acid mist removal and collection device according to claim 1, characterized in that: The water inlet (13) is provided with a regulating valve (12).

4. The hydrochloric acid mist removal and collection device according to claim 1, characterized in that: The packing layer (5) comprises an upper grid (53) and a lower grid (51) fixedly connected to the inner wall of the absorption tank body (4), and a plurality of multi-faceted hollow balls (52) are filled between the upper grid (53) and the lower grid (51).

5. The hydrochloric acid mist removal and collection device according to claim 4, characterized in that: The multi-faceted hollow ball (52) is made of plastic.

6. The hydrochloric acid mist removal and collection device according to any one of claims 1 to 5, characterized in that: The absorption tank body (4) and the tank cover (7) are detachably fixedly connected.

7. The hydrochloric acid mist removal and collection device according to claim 6, characterized in that: A step (6) is provided at the upper end of the absorption tank body (4), and the step (6) and the tank cover (7) are fixedly connected by a plurality of bolts (8).

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