A lye spray tower for volatile waste gas of tert-butanol in the production of potassium tert-butoxide

Abstract

The invention relates to the technical field of alkali liquid spray towers, in particular to an alkali liquid spray tower for volatile waste gas of tert-butyl alcohol in the production of potassium tert-butyl alcohol, comprising an alkali liquid tank, a delivery pump and a liquid outlet pipe; further comprising a neutralization spray box, a middle partition, two side partitions, an air inlet, an air outlet, a liquid infusion pipe, a plurality of nozzles and a reflux pipe, wherein the middle partition and the two side partitions are arranged inside the neutralization spray box, the air inlet and the air outlet are arranged at the left and right ends of the neutralization spray box respectively, the liquid infusion pipe is connected with the output end of the liquid outlet pipe, the liquid infusion pipe is provided with three flange ends, a plurality of nozzles are arranged at the plurality of output ends of the liquid infusion pipe, the plurality of nozzles are respectively located at the left and right sides of the upper parts of the two side partitions, the input end of the reflux pipe extends into the bottom of the neutralization spray box, and the output end of the reflux pipe is connected with the inlet of the alkali liquid tank; the tower is flexible in horizontal or vertical tower combination through modules capable of working independently, the reaction time is prolonged through a tortuous reaction channel, and the reaction efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of alkali solution spray towers, in particular to an alkali solution spray tower used for volatilization waste gas of tert-butanol in the production of potassium tert-butoxide. Background Art

[0002] Tertiary butanol is the main raw material for producing potassium tert-butoxide. In the production process, tertiary butanol will volatilize acidic gases, which are generally transported to an alkali spray tower for neutralization. A variety of alkali spray towers are disclosed in the prior art, such as a alkali spray tower of self-supplementing alkali solution proposed by the Chinese utility model patent with publication number CN215693110U. When the alkali spray tower is in use, after the alkali solution pH value in the bottom of the spray tower body is reduced, the pH sensor immediately transmits the signal to the controller, the controller controls the electromagnetic valve and the alkali pump to open automatically in time, and the alkali solution in the alkali solution tank is supplied to the spray tower body through a connecting pipe and an arc pipe, which can ensure that the alkali solution is quickly mixed with the alkali solution at the bottom of the spray tower body in time after the alkali solution is added, and the effective neutralization of the acid mist is ensured.

[0003] However, most of the existing alkali solution spray towers are of an integral vertical tower structure, and the alkali solution is sprayed downward from the top of the tower. The distance at which the volatile waste gas of tert-butanol and the alkali solution meet and react is limited by the height of the tower body, and the reaction time is short. In addition, the tower structure is not conducive to modularization, and the number of modules cannot be flexibly configured according to the flow rate of the volatile gas of tert-butanol, which has great limitations. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an alkali solution spray tower for tert-butanol volatilization waste gas in potassium tert-butoxide production, which is flexible in horizontal combination or vertical tower combination through modules that can work independently, prolongs the reaction time through a tortuous reaction channel, and has high reaction efficiency.

[0005] The invention discloses an alkali liquid spray tower for volatile waste gas of tert-butanol in the production of potassium tert-butoxide, comprising an alkali liquid box, a delivery pump and a liquid outlet pipe, wherein an alkali liquid chamber is arranged inside the alkali liquid box, the delivery pump is installed on the alkali liquid box, a liquid inlet pipe of the delivery pump extends into the alkali liquid chamber of the alkali liquid box, and an input end of the liquid outlet pipe is connected with an output end of the delivery pump; the tower also comprises a neutralization spray box, a middle partition, two side partitions, an air inlet, an air outlet, a liquid infusion pipe, a plurality of nozzles and a reflux pipe, wherein the neutralization spray box is located on the right side of the alkali liquid box, a neutralization chamber is arranged inside the neutralization spray box, the middle partition and two side partitions are both installed inside the neutralization chamber of the neutralization spray box, the two side partitions are respectively arranged on the left and right sides of the middle partition, the lower end of the middle partition is connected to the bottom of the neutralization spray box, the upper end of the middle partition is provided with a gap with the top of the neutralization spray box, the upper ends of the two side partitions are connected with the top of the neutralization spray box The air inlet and the air outlet are respectively installed at the upper part of the left and right ends of the neutralization spray box, and the air inlet and the air outlet are both connected to the neutralization chamber of the neutralization spray box. The infusion pipe is installed on the outer wall of the neutralization spray box, and the input end of the infusion pipe is connected to the output end of the outlet pipe. The infusion pipe is provided with three flange ends one, and the three flange ends one are respectively facing the right side, the upper side and the lower side. The infusion pipe is provided with multiple output ends, and multiple output ends of the infusion pipe are installed with multiple nozzles, and the multiple nozzles are respectively located on the left and right sides of the upper part of the two side partitions. The reflux pipe is provided with multiple input ends, and the multiple input ends are respectively extended into the bottom of the neutralization chamber of the neutralization spray box. The output end of the reflux pipe is connected to the inlet of the alkali liquid tank. The reflux pipe is provided with three flange ends two, and the three flange ends two are respectively facing the right side, the upper side and the lower side;During operation, one or more neutralization spray boxes are arranged according to the flow rate of the volatile waste gas of tert-butyl alcohol, and the multiple neutralization spray boxes are arranged transversely in sequence, and adjacent neutralization spray boxes are connected through the air inlet and the air outlet, and at the same time, multiple infusion pipes are connected in sequence through the adjacent flange end one, and multiple reflux pipes are connected in sequence through the adjacent flange end two, and alkali solution is added to the alkali solution chamber of the alkali solution box, and the delivery pump is operated to extract the alkali solution and then deliver it to the multiple nozzles through the liquid outlet pipe and multiple infusion pipes. The alkali solution is sprayed in the form of mist into the neutralization chamber of the neutralization spray box through multiple nozzles, and the volatile waste gas of tert-butyl alcohol is input into the neutralization chamber of the neutralization spray box through the air inlet located on the far left of the neutralization spray box. The gas flows downward along the side partition on the left and the left inner wall of the neutralization spray box, passes through the gap between the side partition on the left and the bottom of the neutralization spray box, and then flows upward along the side partition on the left and the middle partition, passes through the gap between the upper end of the middle partition and the top of the neutralization spray box, and then flows along the The gas flows downward along the middle partition and the side partition on the right side, and finally flows upward along the side partition on the right side and the right inner wall of the neutralization spray box after passing through the gap between the lower end of the right side partition and the bottom of the neutralization spray box, and is discharged through the gas outlet. During the gas flow, it intersects and reacts with the misty alkali solution, so that the gas is neutralized and dissolved in the alkali solution. The alkali solution is collected at the bottom of the neutralization chamber of the neutralization spray box and then flows back to the alkali solution chamber of the alkali solution box through multiple reflux pipes, so as to realize the recycling of the alkali solution. Since the neutralization spray box is a module that can work independently, it can be flexibly expanded by connecting multiple neutralization spray boxes in sequence, and a horizontal structure with horizontal arrangement can be realized. In each neutralization spray box, the distance that the gas flows is four times its height, so that the distance of the intersection reaction between the volatile waste gas of tert-butyl alcohol and the alkali solution mist is four times the height of the tower body, thereby extending the reaction time, and the number of neutralization spray boxes can be flexibly configured according to the flow rate of the gas volatilized by tert-butyl alcohol, and the limitation is small. ;

[0006] Preferably, it also includes an upper left interface, an upper right interface, a lower left interface and a lower right interface, the upper left interface and the upper right interface are installed on the upper end surface of the neutralization spray box, the upper left interface is connected to the left end of the neutralization chamber of the neutralization spray box, the upper right interface is connected to the right end of the neutralization chamber of the neutralization spray box, the lower left interface and the lower right interface are installed on the lower end surface of the neutralization spray box, the lower left interface is connected to the left end of the neutralization chamber of the neutralization spray box, the lower right interface is connected to the right end of the neutralization chamber of the neutralization spray box, the upper left interface and the lower left interface are located between the left side partition and the left inner wall of the neutralization spray box, and the upper right interface and the lower right interface are located on the right side Between the partition and the right inner wall of the neutralization spray box; by installing the upper left interface, the upper right interface, the lower left interface and the lower right interface on the upper and lower parts of the neutralization spray box respectively, multiple neutralization spray boxes can be installed in a vertical stack, and the upper left interface and the lower left interface of two upper and lower adjacent neutralization spray boxes are connected, and the upper right interface and the lower right interface are connected, and plugging plates are alternately arranged between the upper left interface and the lower left interface, and between the upper right interface and the lower right interface, so that the neutralization chambers of the multiple neutralization spray boxes are connected, and multiple neutralization spray boxes are stacked and spliced ​​into an integral vertical tower structure, which saves more site area and has good practicality.

[0007] Preferably, it also includes multiple lower packing layers, which are located at the bottom of the neutralization chamber of the neutralization spray box, and the upper end surfaces of the multiple lower packing layers are higher than the lower ends of the two side partitions; by arranging multiple lower packing layers to adsorb alkali solution, the surface area of ​​alkali solution is increased, so that the alkali solution and the volatile gas of tert-butyl alcohol can be more fully contacted.

[0008] Preferably, it also includes an upper packing layer, which is installed on the top of the neutralization chamber of the neutralization spray box, and the upper packing layer is located in the gap between the upper end of the middle partition and the top of the neutralization spray box; by arranging multiple upper packing layers to adsorb the alkali solution, the surface area of ​​the alkali solution is increased, so that the alkali solution and the volatile gas of tert-butyl alcohol are in contact more fully.

[0009] Preferably, it also includes a plurality of protrusions, and the protrusions are arranged on the side walls of the middle partition and the inner walls of the neutralization spray box, and the protrusions are arranged with inclined guide surfaces; by arranging a plurality of protrusions, the alkali liquid flowing downward along the middle partition and the inner wall of the neutralization spray box is cut off and guided to the inside of the neutralization chamber of the neutralization spray box, thereby improving the reaction efficiency of the gas and the alkali liquid.

[0010] Preferably, it also includes a sieve plate, which is obliquely installed on the upper right end of the neutralization chamber of the neutralization spray box, and the sieve plate is intercepted at the air outlet and the inlet end of the upper right interface; the sieve plate intercepts the alkaline liquid mist, so that the alkaline liquid mist is gathered into a liquid downstream on the sieve plate, reducing the discharge of the alkaline liquid mist through the air outlet and the upper right interface, and has good practicality.

[0011] Preferably, it also includes a support sheet and a fin, wherein the support sheet is vertically mounted on the outer wall of the sieve plate, and the fin is mounted on the top of the support sheet, and the support sheet and the fin are made of elastic material; after the gas passes through the sieve plate, it blows through the fin, causing the fin to vibrate, and the fin drives the sieve plate to vibrate through the support sheet, thereby shaking off the alkaline liquid collected on the sieve plate, which has good practicality.

[0012] Preferably, it also includes a sub-partition and a liquid adding port, the sub-partition is vertically installed in the alkali liquid chamber of the alkali liquid box, the liquid inlet pipe of the delivery pump is located on the left side of the sub-partition, the inlet of the alkali liquid box is located on the right side of the sub-partition, and the liquid adding port is installed on the alkali liquid box, and the liquid adding port is connected with the alkali liquid chamber on the left side of the sub-partition; the sub-partition divides the alkali liquid chamber of the alkali liquid box into left and right parts, and alkali liquid is added to the left part of the alkali liquid chamber of the alkali liquid box through the liquid adding port, and the right part of the alkali liquid chamber of the alkali liquid box is used to recover the neutralization liquid refluxed from the neutralization spray box, thereby realizing integration, convenient layout and good practicality.

[0013] Preferably, it also includes a pH sensor 1 and a pH sensor 2, which are installed on the alkali liquid box, and the probe of the pH sensor 1 extends into the right part of the alkali liquid chamber of the alkali liquid box, and the probe of the pH sensor 2 extends into the left part of the alkali liquid chamber of the alkali liquid box; the pH sensor 1 and the pH sensor 2 respectively detect the pH value of the liquid in the right and left parts of the alkali liquid chamber of the alkali liquid box, and alkali liquid or water is added to the alkali liquid chamber of the alkali liquid box through the liquid adding port according to the detected pH value, so that the pH value of the alkali liquid reaches a specified range, which has good practicality.

[0014] Preferably, it also includes a three-way valve, a connecting pipe 1, a connecting pipe 2 and a drain pipe, the three-way valve is installed on the outside of the alkali liquid tank, one end of the connecting pipe 1 is connected to the right part of the alkali liquid chamber of the alkali liquid tank, the other end of the connecting pipe 1 is connected to the first channel of the three-way valve, one end of the connecting pipe 2 is connected to the left part of the alkali liquid chamber of the alkali liquid tank, the other end of the connecting pipe 2 is connected to the second channel of the three-way valve, and one end of the drain pipe is connected to the third channel of the three-way valve; when the pH sensor 1 detects that the pH value of the recovered liquid in the right part of the alkali liquid chamber of the alkali liquid tank meets the requirements, the three-way valve connects the connecting pipe 1 and the connecting pipe 2, The three-way valve connects the connecting pipe 1 and the connecting pipe 2 to the drain pipe, so that the refluxed liquid can be recycled. When the pH sensor 1 detects that the pH value of the recovered liquid in the right part of the alkali liquid chamber of the alkali liquid tank does not meet the requirements, the three-way valve closes the connecting pipe 1, the connecting pipe 2 and the drain pipe. When the pH sensor 1 and the pH sensor 2 detect that the pH values ​​of the liquids in the left and right parts of the alkali liquid chamber of the alkali liquid tank do not meet the requirements, the three-way valve connects the connecting pipe 1 and the connecting pipe 2 to the drain pipe, so that the liquid in the alkali liquid chamber of the alkali liquid tank is discharged through the connecting pipe 1, the connecting pipe 2 and the drain pipe, thereby improving the utilization rate of the alkali liquid.

[0015] Compared with the prior art, the invention has the following beneficial effects: since the neutralization spray box is a module that can work independently, a plurality of neutralization spray boxes can be connected in sequence to achieve flexible expansion, and a horizontal structure arranged laterally is formed. In each neutralization spray box, the distance that the gas flows through is four times the height of the neutralization spray box, so that the distance of the intersection reaction of the volatile waste gas of tert-butyl alcohol and the alkali liquid mist is four times the height of the tower body, thereby extending the reaction time, and the number of neutralization spray boxes can be flexibly configured according to the flow rate of the gas volatilized by the tert-butyl alcohol, and the limitation is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 It is a partial sectional axonometric diagram of the neutralization spray box, middle partition, side partition, air inlet, air outlet, infusion pipe, nozzle and return pipe;

[0018] Figure 3 It is a front cross-sectional structural diagram of the neutralization spray box, middle partition, side partition, air inlet and air outlet;

[0019] Figure 4 It is an axonometric diagram of the structure of the neutralization spray box, middle partition, side partition, air inlet, liquid infusion pipe, nozzle and return pipe;

[0020] Figure 5 It is a schematic diagram of the structure of the alkali liquid tank, the delivery pump, the liquid outlet pipe and the auxiliary partition;

[0021] Figure 6 It is a front cross-sectional structural diagram of the alkali liquid tank, the delivery pump, the liquid outlet pipe and the auxiliary partition;

[0022] Figure 7 It is a schematic diagram of the structure of the infusion tube, the nozzle and other structures;

[0023] Figure 8 It is a schematic diagram of the structure of the screen plate, support plate and fin;

[0024] Fig. 9 It is a structural schematic diagram of the horizontal assembly state of the present invention;

[0025] Fig.10 It is a structural schematic diagram of the present invention in a vertical assembly state.

[0026] Markings in the attached figure: 1. alkali liquid tank; 2. delivery pump; 3. liquid outlet pipe; 4. neutralization spray box; 5. middle partition; 6. side partition; 7. air inlet; 8. air outlet; 9. liquid infusion tube; 10. nozzle; 11. reflux pipe; 12. upper left interface; 13. upper right interface; 14. lower left interface; 15. lower right interface; 16. lower packing layer; 17. upper packing layer; 18. bump; 19. sieve plate; 20. support sheet; 21. fin; 22. auxiliary partition; 23. liquid filling port; 24. PH sensor 1; 25. PH sensor 2; 26. three-way valve; 27. connecting pipe 1; 28. connecting pipe 2; 29. ​​drain pipe. DETAILED DESCRIPTION

[0027] In order to facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0028] Example 1

[0029] like Figures 1 to 9As shown, a lye spray tower for volatile waste gas of tert-butanol in the production of potassium tert-butoxide comprises a lye tank 1, a delivery pump 2 and a liquid outlet pipe 3, wherein a lye chamber is arranged inside the lye tank 1, the delivery pump 2 is installed on the lye tank 1, the liquid inlet pipe of the delivery pump 2 extends into the lye chamber of the lye tank 1, and the input end of the liquid outlet pipe 3 is connected with the output end of the delivery pump 2; it also comprises a neutralization spray box 4, a middle partition plate 5, two side partition plates 6, an air inlet 7, an air outlet 8, a liquid infusion pipe 9, a plurality of nozzles 10 and a reflux pipe 11, the neutralization spray box 4 is located on the right side of the lye tank 1, a neutralization chamber is arranged inside the neutralization spray box 4, the middle partition plate 5 and the two side partition plates 6 are all installed inside the neutralization chamber of the neutralization spray box 4, and the two side partition plates 6 are installed inside the neutralization chamber of the neutralization spray box 4. The side partitions 6 are respectively located on the left and right sides of the middle partition 5, the lower end of the middle partition 5 is connected to the bottom of the neutralization spray box 4, a gap is set between the upper end of the middle partition 5 and the top of the neutralization spray box 4, the upper ends of the two side partitions 6 are connected to the top of the neutralization spray box 4, and a gap is set between the lower ends of the two side partitions 6 and the bottom of the neutralization spray box 4. The air inlet 7 and the air outlet 8 are respectively installed at the upper parts of the left and right ends of the neutralization spray box 4, and the air inlet 7 and the air outlet 8 are both connected to the neutralization chamber of the neutralization spray box 4. The infusion pipe 9 is installed on the outer wall of the neutralization spray box 4, and the input end of the infusion pipe 9 is connected to the output end of the outlet pipe 3. The infusion pipe 9 is provided with three flange ends one, and the three flange ends one are respectively facing the right side, On the upper and lower sides, the infusion pipe 9 is provided with multiple output ends, and multiple output ends of the infusion pipe 9 are installed with multiple nozzles 10, and the multiple nozzles 10 are respectively located on the left and right sides of the upper part of the two side partitions 6; the return pipe 11 is provided with multiple input ends, and the multiple input ends are respectively extended into the bottom of the neutralization chamber of the neutralization spray box 4; the output end of the return pipe 11 is connected to the inlet of the alkali liquid box 1; the return pipe 11 is provided with three flange ends 2, and the three flange ends 2 are respectively facing the right side, the upper side and the lower side; it also includes multiple lower packing layers 16, and the multiple lower packing layers 16 are located at the bottom of the neutralization chamber of the neutralization spray box 4, and the upper end surfaces of the multiple lower packing layers 16 are higher than the lower ends of the two side partitions 6; it also includes an upper packing layer 17, the upper The packing layer 17 is installed on the top of the neutralization chamber of the neutralization spray box 4, and the upper packing layer 17 is located in the gap between the upper end of the middle partition 5 and the top of the neutralization spray box 4; it also includes a plurality of protrusions 18, and the side walls of the middle partition 5 and the inner walls of the neutralization spray box 4 are provided with protrusions 18, and the protrusions 18 are provided with inclined guide surfaces; it also includes a sieve plate 19, and the sieve plate 19 is obliquely installed at the upper right end of the neutralization chamber of the neutralization spray box 4, and the sieve plate 19 intercepts the air outlet 8 and the inlet end of the upper right interface 13; it also includes a support sheet 20 and a fin 21, the support sheet 20 is vertically installed on the outer side wall of the sieve plate 19, and the fin 21 is installed on the top of the support sheet 20, and the support sheet 20 and the fin 21 are elastic materials.

[0030] During operation, one or more neutralization spray boxes 4 are arranged according to the flow rate of the volatile waste gas of tert-butyl alcohol, and the plurality of neutralization spray boxes 4 are arranged transversely in sequence, and adjacent neutralization spray boxes 4 are connected through the air inlet 7 and the air outlet 8, and at the same time, a plurality of liquid infusion pipes 9 are connected in sequence through the adjacent flange end 1, and a plurality of reflux pipes 11 are connected in sequence through the adjacent flange end 2, and alkali liquid is added to the alkali liquid chamber of the alkali liquid box 1, and the delivery pump 2 is operated to extract the alkali liquid and then deliver it to the plurality of nozzles 1 through the liquid outlet pipe 3 and the plurality of liquid infusion pipes 9. 0 transport, so that the alkali solution is sprayed in the neutralization chamber of the neutralization spray box 4 in the form of mist through multiple nozzles 10, and the volatile waste gas of tert-butyl alcohol is input into the neutralization chamber of the neutralization spray box 4 through the air inlet 7 located on the leftmost side of the neutralization spray box 4, and the gas flows downward along the left side partition plate 6 and the left inner wall of the neutralization spray box 4, passes through the gap between the left side partition plate 6 and the bottom of the neutralization spray box 4, and then flows upward along the left side partition plate 6 and the middle partition plate 5, passes through the upper end of the middle partition plate 5 and the neutralization spray box 4 After passing through the gap between the top and the bottom of the neutralization spray box 4, the gas flows downward along the middle partition plate 5 and the side partition plate 6 on the right side, and finally flows upward along the side partition plate 6 on the right side and the right inner wall of the neutralization spray box 4 after passing through the gap between the lower end of the right side partition plate 6 and the bottom of the neutralization spray box 4, and is discharged through the gas outlet 8. During the gas flow, it interacts with the misty alkali solution to neutralize the gas and dissolve in the alkali solution. The alkali solution is collected at the bottom of the neutralization chamber of the neutralization spray box 4 and then flows back to the alkali solution chamber of the alkali solution box 1 through multiple reflux pipes 11, thereby achieving The alkali solution can be recycled; since the neutralization spray box 4 is a module that can work independently, multiple neutralization spray boxes 4 can be connected in sequence to achieve flexible expansion, and a horizontal structure with a horizontal arrangement can be formed. The distance that the gas flows through in each neutralization spray box 4 is four times its height, so that the distance of the intersection reaction of the volatile waste gas of tert-butyl alcohol and the alkali solution mist is four times the height of the tower body, thereby extending the reaction time, and the number of neutralization spray boxes 4 can be flexibly configured according to the flow rate of the gas volatilized by tert-butyl alcohol.

[0031] By arranging a plurality of lower packing layers 16 to adsorb the alkali liquid and increase the surface area of ​​the alkali liquid, and by arranging a plurality of upper packing layers 17 to adsorb the alkali liquid and increase the surface area of ​​the alkali liquid, the alkali liquid and the volatilized gas of tert-butyl alcohol can be more fully contacted at the turning point, and by arranging a plurality of protrusions 18 to intercept the alkali liquid flowing downward along the inner wall of the middle partition plate 5 and the neutralization spray box 4 and guide it to the inside of the neutralization chamber of the neutralization spray box 4, the alkali liquid and the volatilized gas of tert-butyl alcohol can be more fully contacted in the straight channel.

[0032] Before the gas is discharged from the neutralization spray box 4, the sieve plate 19 intercepts the alkaline liquid mist, so that the alkaline liquid mist is gathered on the sieve plate 19 into a liquid downstream, reducing the discharge of the alkaline liquid mist through the air outlet 8 and the upper right interface 13. After passing through the sieve plate 19, the gas blows through the fin 21, causing the fin 21 to vibrate. The fin 21 drives the sieve plate 19 to vibrate through the support plate 20, thereby shaking off the alkaline liquid gathered on the sieve plate 19.

[0033] Example 2

[0034] like Figures 2 to 4 and Fig.10 As shown, on the basis of Example 1, it also includes an upper left interface 12, an upper right interface 13, a lower left interface 14 and a lower right interface 15, the upper left interface 12 and the upper right interface 13 are installed on the upper end surface of the neutralization spray box 4, the upper left interface 12 is connected to the left end of the neutralization chamber of the neutralization spray box 4, the upper right interface 13 is connected to the right end of the neutralization chamber of the neutralization spray box 4, the lower left interface 14 and the lower right interface 15 are installed on the lower end surface of the neutralization spray box 4, the lower left interface 14 is connected to the left end of the neutralization chamber of the neutralization spray box 4, the lower right interface 15 is connected to the right end of the neutralization chamber of the neutralization spray box 4, the upper left interface 12 and the lower left interface 14 are located between the left side partition 6 and the left inner wall of the neutralization spray box 4, the upper right interface 13 and the lower right interface 15 are located between the right side partition 6 and the right inner wall of the neutralization spray box 4.

[0035] By installing the upper left interface 12, the upper right interface 13, the lower left interface 14 and the lower right interface 15 on the upper and lower parts of the neutralization spray box 4 respectively, multiple neutralization spray boxes 4 can be vertically stacked and installed, and the upper left interface 12 and the lower left interface 14 of two upper and lower adjacent neutralization spray boxes 4 are connected, and the upper right interface 13 and the lower right interface 15 are connected, and blocking plates are alternately arranged between the upper left interface 12 and the lower left interface 14, and between the upper right interface 13 and the lower right interface 15, so that the neutralization chambers of the multiple neutralization spray boxes 4 are connected, and multiple neutralization spray boxes 4 are stacked and spliced ​​into an integral vertical tower structure, which saves more site area and has good practicality.

[0036] Example 3

[0037] like Figure 1 , Figure 5 and Figure 6As shown, on the basis of Example 1, it also includes a sub-partition 22 and a liquid filling port 23, the sub-partition 22 is vertically installed in the alkali liquid chamber of the alkali liquid tank 1, the liquid inlet pipe of the delivery pump 2 is located on the left side of the sub-partition 22, the inlet of the alkali liquid tank 1 is located on the right side of the sub-partition 22, the liquid filling port 23 is installed on the alkali liquid tank 1, and the liquid filling port 23 is connected to the alkali liquid chamber on the left side of the sub-partition 22; it also includes a pH sensor 1 24 and a pH sensor 25, the pH sensor 1 24 and the pH sensor 25 are installed on the alkali liquid tank 1, and the probe of the pH sensor 1 24 extends into the right side of the alkali liquid chamber of the alkali liquid tank 1. The probe of the PH sensor 25 extends into the left part of the alkali liquid chamber of the alkali liquid tank 1; it also includes a three-way valve 26, a connecting pipe 1 27, a connecting pipe 28 and a drain pipe 29, the three-way valve 26 is installed on the outside of the alkali liquid tank 1, one end of the connecting pipe 1 27 is connected to the right part of the alkali liquid chamber of the alkali liquid tank 1, the other end of the connecting pipe 1 27 is connected to the first channel of the three-way valve 26, one end of the connecting pipe 2 28 is connected to the left part of the alkali liquid chamber of the alkali liquid tank 1, the other end of the connecting pipe 2 28 is connected to the second channel of the three-way valve 26, and one end of the drain pipe 29 is connected to the third channel of the three-way valve 26.

[0038] The auxiliary partition 22 divides the alkali liquid chamber of the alkali liquid tank 1 into two parts, the left part, and the right part of the alkali liquid chamber of the alkali liquid tank 1 is used to recover the neutralization liquid refluxed from the neutralization spray box 4, so as to achieve integration, convenient arrangement and good practicality. The PH sensor 1 24 and the PH sensor 2 25 respectively detect the PH values ​​of the liquids in the right and left parts of the alkali liquid chamber of the alkali liquid tank 1. According to the detected PH value, alkali liquid or water is added to the alkali liquid chamber of the alkali liquid tank 1 through the liquid adding port 23, so that the PH value of the alkali liquid reaches the specified range, which is good in practicality. When the PH sensor 1 24 detects that the PH value of the recovered liquid in the right part of the alkali liquid chamber of the alkali liquid tank 1 meets the requirements, the three The three-way valve 26 connects the connecting pipe 1 27 and the connecting pipe 2 28 so that the refluxed liquid can be recycled. When the pH sensor 1 24 detects that the pH value of the recovered liquid in the right part of the alkali liquid chamber of the alkali liquid tank 1 does not meet the requirements, the three-way valve 26 closes the connecting pipe 1 27, the connecting pipe 2 28 and the drain pipe 29. When the pH sensor 1 24 and the pH sensor 2 25 detect that the pH values ​​of the liquids in the left and right parts of the alkali liquid chamber of the alkali liquid tank 1 do not meet the requirements, the three-way valve 26 connects the connecting pipe 1 27 and the connecting pipe 2 28 with the drain pipe 29, thereby discharging the liquid in the alkali liquid chamber of the alkali liquid tank 1 through the connecting pipe 1 27, the connecting pipe 2 28 and the drain pipe 29, thereby improving the utilization rate of the alkali liquid.

[0039] like Figures 1 to 10As shown, an alkali liquid spray tower for volatile waste gas of tert-butanol in potassium tert-butoxide production of the present invention, when working, firstly, one or more neutralization spray boxes 4 are set according to the flow rate of the volatile waste gas of tert-butanol, and the plurality of neutralization spray boxes 4 are arranged transversely in sequence, and adjacent neutralization spray boxes 4 are connected through an air inlet 7 and an air outlet 8, and at the same time, a plurality of liquid infusion pipes 9 are connected in sequence through adjacent flange ends 1, and a plurality of reflux pipes 11 are connected in sequence through adjacent flange ends 2, and then alkali liquid is added to the left part of the alkali liquid chamber of the alkali liquid box 1 through the liquid adding port 23, and the delivery pump 2 is operated to extract the alkali liquid and then the alkali liquid is discharged through the liquid outlet pipe 3 and a plurality of liquid infusion pipes 9 is transported to multiple nozzles 10, so that the alkali solution is sprayed in the neutralization chamber of the neutralization spray box 4 in a mist form through the multiple nozzles 10, and the volatile waste gas of tert-butyl alcohol is input into the neutralization chamber of the neutralization spray box 4 through the air inlet 7 located on the leftmost side of the neutralization spray box 4. The gas flows downward along the left side partition 6 and the left inner wall of the neutralization spray box 4, passes through the gap between the left side partition 6 and the bottom of the neutralization spray box 4, and then flows upward along the left side partition 6 and the middle partition 5, passes through the gap between the upper end of the middle partition 5 and the top of the neutralization spray box 4, and then flows downward along the middle partition 5 and the right side partition 6, and finally passes through the right side After passing through the gap between the lower end of the partition 6 and the bottom of the neutralization spray box 4, the gas flows upward along the right side partition 6 and the right inner wall of the neutralization spray box 4, and is discharged through the gas outlet 8 or discharged into the next neutralization spray box 4. Then, during the gas flow, the gas intersects and reacts with the misty alkali solution, so that the gas is neutralized and dissolved in the alkali solution. After the alkali solution is collected at the bottom of the neutralization chamber of the neutralization spray box 4, it flows back to the right part of the alkali solution chamber of the alkali solution box 1 through multiple reflux pipes 11. Finally, when the PH sensor 1 24 detects that the PH value of the recovered liquid in the right part of the alkali solution chamber of the alkali solution box 1 meets the requirements, the three-way valve 26 connects the connecting pipe 1 27 and the connecting pipe 2 2 8 is connected so that the refluxed liquid can be recycled. When the pH sensor 1 24 detects that the pH value of the recovered liquid in the right part of the alkali liquid chamber of the alkali liquid tank 1 does not meet the requirements, the three-way valve 26 closes the connecting pipe 1 27, the connecting pipe 2 28 and the drain pipe 29. When the pH sensor 1 24 and the pH sensor 2 25 detect that the pH values ​​of the liquids in the left and right parts of the alkali liquid chamber of the alkali liquid tank 1 do not meet the requirements, the three-way valve 26 connects the connecting pipe 1 27 and the connecting pipe 2 28 with the drain pipe 29, so that the liquid in the alkali liquid chamber of the alkali liquid tank 1 can be discharged through the connecting pipe 1 27, the connecting pipe 2 28 and the drain pipe 29.

[0040] The main functions achieved by the present invention are:

[0041] 1. Through the modules that can work independently, flexible horizontal combination or vertical tower combination can be carried out, which is practical;

[0042] 2. The tortuous reaction channel extends the reaction time by four times, with high reaction efficiency and more thorough reaction;

[0043] 3. The alkali solution flowing downward along the inner wall can be intercepted and splashed into the neutralization chamber of the neutralization spray box 4, thereby improving the reaction efficiency of the gas and the alkali solution.

[0044] The alkali liquid spray tower for volatile waste gas of tert-butanol in the production of potassium tert-butoxide of the present invention is installed in a common mechanical manner, connected in a common mechanical manner, and can be implemented as long as the beneficial effect can be achieved; the alkali liquid tank 1, the delivery pump 2, the liquid outlet pipe 3, the liquid infusion pipe 9, the nozzle 10, the reflux pipe 11, the lower packing layer 16, the upper packing layer 17, the sieve plate 19, the support sheet 20, the fin 21, the pH sensor 1 24, the pH sensor 2 25, and the three-way valve 26 of the alkali liquid spray tower for volatile waste gas of tert-butanol in the production of potassium tert-butoxide of the present invention are purchased on the market, and technicians in the industry only need to install and operate according to the attached instruction manual, without the need for creative labor by technicians in the field.

[0045] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An alkali liquid spray tower for volatile waste gas of tert-butyl alcohol in the production of potassium tert-butyl alcohol, comprising an alkali liquid tank (1), a delivery pump (2) and a liquid outlet pipe (3), wherein an alkali liquid chamber is arranged inside the alkali liquid tank (1), the delivery pump (2) is installed on the alkali liquid tank (1), the liquid inlet pipe of the delivery pump (2) extends into the alkali liquid chamber of the alkali liquid tank (1), and the input end of the liquid outlet pipe (3) is connected to the output end of the delivery pump (2); characterized in that: The invention also comprises a neutralization spray box (4), a middle partition (5), two side partitions (6), an air inlet (7), an air outlet (8), a liquid infusion pipe (9), a plurality of nozzles (10) and a return pipe (11). The neutralization spray box (4) is located on the right side of the alkali liquid box (1). A neutralization chamber is arranged inside the neutralization spray box (4). The middle partition (5) and the two side partitions (6) are installed inside the neutralization chamber of the neutralization spray box (4). The two side partitions ( 6) are respectively located on the left and right sides of the middle partition (5), the lower end of the middle partition (5) is connected to the bottom of the neutralization spray box (4), the upper end of the middle partition (5) and the top of the neutralization spray box (4) are provided with a gap, the upper ends of the two side partitions (6) are connected to the top of the neutralization spray box (4), the lower ends of the two side partitions (6) and the bottom of the neutralization spray box (4) are provided with a gap, and the air inlet (7) and the air outlet (8) are respectively installed on the neutralization spray box ( 4), the air inlet (7) and the air outlet (8) are both connected to the neutralization chamber of the neutralization spray box (4), the liquid infusion pipe (9) is installed on the outer wall of the neutralization spray box (4), the input end of the liquid infusion pipe (9) is connected to the output end of the liquid outlet pipe (3), the liquid infusion pipe (9) is provided with three flange ends one, the three flange ends one are respectively facing the right side, the upper side and the lower side, the liquid infusion pipe (9) is provided with multiple output ends, the multiple output ends of the liquid infusion pipe (9) are all equipped with multiple nozzles (10), the multiple nozzles (10) are respectively located on the left and right sides of the upper part of the two side partitions (6), the return pipe (11) is provided with multiple input ends, the multiple input ends respectively extend into the bottom of the neutralization chamber of the neutralization spray box (4), the output end of the return pipe (11) is connected to the inlet of the alkali liquid box (1), the return pipe (11) is provided with three flange ends two, the three flange ends two are respectively facing the right side, the upper side and the lower side; It also includes a sieve plate (19), which is obliquely installed at the upper right end of the neutralization chamber of the neutralization spray box (4), and the sieve plate (19) intercepts the air outlet (8) and the inlet end of the upper right interface (13); It also includes a support sheet (20) and a fin (21), wherein the support sheet (20) is vertically mounted on the outer side wall of the screen plate (19), and the fin (21) is mounted on the top of the support sheet (20), and the support sheet (20) and the fin (21) are made of elastic material.

2. The alkali solution spray tower for volatile waste gas of tert-butanol in the production of potassium tert-butoxide as claimed in claim 1, characterized in that: The invention also comprises an upper left interface (12), an upper right interface (13), a lower left interface (14) and a lower right interface (15), wherein the upper left interface (12) and the upper right interface (13) are installed on the upper end surface of the neutralization spray box (4), the upper left interface (12) is connected to the left end of the neutralization chamber of the neutralization spray box (4), the upper right interface (13) is connected to the right end of the neutralization chamber of the neutralization spray box (4), and the lower left interface (14) and the lower right interface (15) are installed on the neutralization spray box (4). On the lower end surface of the box (4), the lower left interface (14) is connected to the left end of the neutralization chamber of the neutralization spray box (4), the lower right interface (15) is connected to the right end of the neutralization chamber of the neutralization spray box (4), the upper left interface (12) and the lower left interface (14) are located between the left side partition (6) and the left inner wall of the neutralization spray box (4), and the upper right interface (13) and the lower right interface (15) are located between the right side partition (6) and the right inner wall of the neutralization spray box (4).

3. An alkali liquid spray tower for volatile waste gas of tert-butanol in the production of potassium tert-butoxide as claimed in claim 1, characterized in that: It also includes a plurality of lower packing layers (16), which are located at the bottom of the neutralization chamber of the neutralization spray box (4), and the upper end surfaces of the plurality of lower packing layers (16) are higher than the lower ends of the two side partitions (6).

4. The alkali solution spray tower for volatile waste gas of tert-butanol in the production of potassium tert-butoxide as claimed in claim 1, characterized in that: It also includes an upper packing layer (17), which is installed on the top of the neutralization chamber of the neutralization spray box (4), and the upper packing layer (17) is located in the gap between the upper end of the middle partition plate (5) and the top of the neutralization spray box (4).

5. The alkali solution spray tower for volatile waste gas of tert-butanol in the production of potassium tert-butoxide as claimed in claim 1, characterized in that: It also includes a plurality of protrusions (18), the protrusions (18) being arranged on the side wall of the middle partition (5) and the inner wall of the neutralization spray box (4), and the protrusions (18) being arranged with inclined flow guide surfaces.

6. An alkali liquid spray tower for volatile waste gas of tert-butanol in the production of potassium tert-butoxide as claimed in claim 1, characterized in that: The invention also comprises a sub-partition (22) and a liquid adding port (23), wherein the sub-partition (22) is vertically mounted in the alkali liquid chamber of the alkali liquid box (1), the liquid inlet pipe of the delivery pump (2) is located on the left side of the sub-partition (22), the inlet of the alkali liquid box (1) is located on the right side of the sub-partition (22), and the liquid adding port (23) is mounted on the alkali liquid box (1), and the liquid adding port (23) is communicated with the alkali liquid chamber on the left side of the sub-partition (22).

7. An alkali liquid spray tower for volatile waste gas of tert-butanol in the production of potassium tert-butoxide as claimed in claim 6, characterized in that: The device further comprises a pH sensor 1 (24) and a pH sensor 2 (25). The pH sensor 1 (24) and the pH sensor 2 (25) are mounted on the alkali liquid tank (1). The probe of the pH sensor 1 (24) extends into the right part of the alkali liquid chamber of the alkali liquid tank (1), and the probe of the pH sensor 2 (25) extends into the left part of the alkali liquid chamber of the alkali liquid tank (1).

8. An alkali liquid spray tower for volatile waste gas of tert-butanol in the production of potassium tert-butoxide as claimed in claim 6, characterized in that: The invention also comprises a three-way valve (26), a connecting pipe 1 (27), a connecting pipe 2 (28) and a drainage pipe (29), wherein the three-way valve (26) is installed outside the alkali liquid tank (1), one end of the connecting pipe 1 (27) is connected to the right part of the alkali liquid chamber of the alkali liquid tank (1), the other end of the connecting pipe 1 (27) is connected to the first channel of the three-way valve (26), one end of the connecting pipe 2 (28) is connected to the left part of the alkali liquid chamber of the alkali liquid tank (1), the other end of the connecting pipe 2 (28) is connected to the second channel of the three-way valve (26), and one end of the drainage pipe (29) is connected to the third channel of the three-way valve (26).

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