A kind of alkali residue solid waste neutralization device and method

Abstract

The invention discloses a neutralization device and method for alkali slag solid waste, belonging to the technical field of alkali slag treatment devices. A neutralization device for alkali slag solid waste includes a reaction tube, and also includes: a feeding tube for feeding the reaction tube; a heat absorption sleeve is arranged in the reaction tube, and a reaction chamber is arranged in the heat absorption sleeve; a feeding pipe is connected between the feeding tube and the upper end of the reaction tube, and one end of the feeding pipe is placed in the reaction tube and is located in the reaction chamber; a stirring rod is arranged in the reaction chamber; an air supply pipe is connected between the feeding tube and the lower end of the reaction tube; a heating sleeve is arranged at the bottom of the feeding tube; an air intake sleeve is arranged at the bottom of the heat absorption sleeve, and a third turbine blade is arranged in the air intake sleeve, a second connecting pipe is connected between the upper ends of the heat absorption sleeve and the heating sleeve, and a first connecting pipe is connected between the lower end of the heat absorption sleeve and the air intake sleeve; the invention can eliminate hydrogen sulfide gas generated by treating alkali slag solid waste inside, which is beneficial to improving its economic benefits.

Description

Technical Field

[0001] The invention relates to the technical field of alkali slag treatment devices, and in particular to an alkali slag solid waste neutralization device. Background Art

[0002] Alkali residue solid waste refers to waste materials containing alkaline substances generated in industrial production. These waste materials are usually produced in the process of alkali production or alkali treatment. The main components include alkaline substances such as calcium hydroxide and sodium hydroxide. These wastes are highly alkaline and have certain hazards to the environment. Therefore, they need to be properly treated and disposed of to reduce the negative impact on the environment. At present, the treatment and disposal methods for alkali residue solid waste mainly include recycling, incineration, biological treatment and solidification treatment.

[0003] Generally, an acid solution is used to neutralize the alkali slag solid, such as sulfuric acid, hydrochloric acid and other acid solutions, so that the alkaline substances in the alkali slag react with the acid solution to be converted into salt substances and water, thereby achieving the purpose of neutralization and regeneration. However, when the alkaline substances react with the acid solution, hydrogen sulfide waste gas is generally produced. Hydrogen sulfide waste gas not only pollutes the environment, but also causes serious damage to the health of factory workers and surrounding residents. Therefore, it is necessary to treat the hydrogen sulfide waste gas to prevent secondary pollution to the environment.

[0004] At present, when treating hydrogen sulfide waste gas, it is usually necessary to add acidic or alkaline agents to react with the hydrogen sulfide waste gas to neutralize it and convert it into harmless carbon dioxide and water, thereby achieving the neutralization effect. This increases the treatment process and also increases the resources required to treat the alkaline slag solid waste. Summary of the invention

[0005] The purpose of the present invention is to solve the problems in the prior art and to propose an alkali slag solid waste neutralization device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] The invention comprises a reaction cylinder and also includes: a feeding cylinder for feeding materials to the reaction cylinder; a heat absorption sleeve is arranged in the reaction cylinder, and a reaction chamber is arranged in the heat absorption sleeve; a feeding pipe is connected between the upper end of the feeding cylinder and the reaction cylinder, and one end of the feeding pipe is placed in the reaction cylinder and is located in the reaction chamber; a stirring rod is arranged in the reaction chamber; an air supply pipe is connected between the lower end of the feeding cylinder and the reaction cylinder; a heating sleeve is arranged at the bottom of the feeding cylinder; an air intake sleeve is arranged at the bottom of the heat absorption sleeve, and a third turbine blade is arranged in the air intake sleeve, a second connecting pipe is connected between the upper ends of the heat absorption sleeve and the heating sleeve, and a first connecting pipe is connected between the lower end of the heat absorption sleeve and the air intake sleeve; an upwardly inclined oblique pipe is opened in the reaction chamber, the oblique pipe is connected to the reaction chamber, an electronic pH meter is arranged in the oblique pipe, and the sensing end of the electronic pH meter faces the reaction chamber; a liquid infusion pipe and a liquid return pipe are also arranged in the reaction cylinder, and one end of the liquid infusion pipe and the liquid return pipe outflowing liquid is placed in the reaction chamber; a feed discharge pipe is arranged at the bottom of the reaction chamber.

[0008] Preferably, the reaction cylinder and the feeding cylinder are both fixed by a fixing frame, a first driving part and a second driving part are respectively provided above the reaction cylinder and the feeding cylinder, and a conveying pipe is provided at the bottom end of the feeding cylinder.

[0009] Furthermore, a screw conveying mechanism is provided in the feeding cylinder, the top end of the screw conveying mechanism is fixedly connected to the output end of the second driving part, and a first rotating rod is rotatably connected in the reaction cylinder, the top end of the first rotating rod is fixedly connected to the output end of the first driving part.

[0010] Preferably, a third driving part is provided in the reaction cylinder, a second rotating rod is rotatably connected in the reaction cylinder, the top end of the second rotating rod is located in the air intake sleeve, the third turbine blade is fixedly connected to the second rotating rod, the lower end of the second rotating rod is provided with a second turbine blade, and the bottom end of the second rotating rod is fixedly connected to the output end of the third driving part.

[0011] Preferably, the heat absorption sleeve is fixed in the reaction cylinder through a fixing block, and a heightening gasket is provided on the heat absorption sleeve. Through holes are opened on the heightening gasket in a circumferential distribution, and an arc-shaped cover is provided on the heightening gasket.

[0012] Preferably, the port of the reaction chamber is provided with an anti-overflow edge ring, a feed chute is provided on the reaction chamber, and one end of the feed pipe located in the reaction chamber corresponds to the feed chute.

[0013] Furthermore, a mounting block is provided on the arc-shaped cover, and a mounting hole is provided on the mounting block.

[0014] Furthermore, an arc-shaped knocking block is rotatably connected to the mounting block, a mounting rod is provided at one end of the arc-shaped knocking block close to the mounting block, a torsion spring is sleeved on the mounting rod, the mounting rod and the torsion spring are both installed in the mounting hole, a contact block is provided at one end of the arc-shaped knocking block close to the mounting block, and an end of the arc-shaped knocking block away from the mounting block cooperates with the feeding pipe.

[0015] Furthermore, a first turbine blade is disposed at the upper end of the first rotating rod, a toggle block matched with the contact block is disposed on the first rotating rod, the stirring rod is fixedly connected to the bottom end of the first rotating rod, and the stirring rod is in contact with the bottom surface of the reaction chamber.

[0016] Preferably, a method for using a alkali slag solid waste neutralization device comprises the following steps:

[0017] S1, the liquid replenishing tube flushes the acidic solution into the reaction chamber;

[0018] S2, the alkali residue solid waste in the feeding cylinder enters the reaction chamber through the feeding pipe, and the acid solution in the reaction chamber reacts with the alkali residue solid waste to neutralize;

[0019] S3, stirring with a stirring rod to allow the acidic solution to fully react with the alkali slag solid waste, and the electronic pH meter determines whether the reaction is sufficient by detecting the pH value in the reaction chamber;

[0020] S4. The hydrogen sulfide gas generated by the reaction of the acidic solution and the alkali slag solid waste enters the bottom of the feeding barrel through the gas delivery pipe and reacts with the alkali slag solid waste in the feeding barrel.

[0021] Compared with the prior art, the present invention provides a alkali slag solid waste neutralization device, which has the following beneficial effects:

[0022] 1. The alkali slag solid waste neutralization device discharges the hydrogen sulfide gas and water vapor in the reaction tube into the bottom of the feeding tube through the first turbine blade and the second turbine blade to react with the alkali slag solid waste, so that the hydrogen sulfide gas generated by the reaction is eliminated automatically inside, which is beneficial to improving economic benefits.

[0023] 2. The alkali slag solid waste neutralization device accelerates the reaction of the alkali slag solid waste with the acidic solution through a stirring rod, fully mixes the solution in the reaction chamber, and enables the electronic pH meter to accurately measure the pH value in the reaction chamber, and quickly and accurately judge the state of the alkali slag.

[0024] 3. The alkali slag solid waste neutralization device discharges the hot gas in the heat absorption sleeve into the heating sleeve through the third turbine blade, so that the hot gas heats the bottom of the feeding pipe, preventing the hydrogen sulfide gas and water vapor from being cooled and adhering to the inner wall of the pipe and the inner wall of the cylinder, thereby ensuring that the hydrogen sulfide gas fully reacts with the alkali slag solid waste in the feeding pipe.

[0025] The parts not involved in the alkali slag solid waste neutralization device are the same as the existing technology or can be implemented by using the existing technology. The present invention can simultaneously eliminate the hydrogen sulfide gas generated by the reaction while processing the alkali slag solid waste, which is beneficial to improving its economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of an alkaline slag solid waste neutralization device proposed by the present invention;

[0027] Figure 2 This is a schematic diagram of the structure inside the feeding cylinder of an alkali slag solid waste neutralization device proposed by the present invention;

[0028] Figure 3 A schematic diagram of the structure inside the reaction tube of a alkali slag solid waste neutralization device proposed by the present invention Figure 1 ;

[0029] Figure 4 A schematic diagram of the structure inside the reaction tube of a alkali slag solid waste neutralization device proposed by the present invention Figure 2 ;

[0030] Figure 5 A alkali slag solid waste neutralization device proposed by the present invention Figure 4 The structural diagram of the enlarged part A in the middle;

[0031] Figure 6 A schematic diagram of the structure inside the reaction tube of a alkali slag solid waste neutralization device proposed by the present invention Figure 3 ;

[0032] Figure 7 An exploded view of a reaction cylinder of an alkali slag solid waste neutralization device proposed by the present invention;

[0033] Figure 8 A cross-sectional view of a reaction chamber of a alkali slag solid waste neutralization device proposed by the present invention Figure 1 ;

[0034] Fig. 9 A cross-sectional view of a reaction chamber of a alkali slag solid waste neutralization device proposed by the present invention Figure 2 .

[0035] In the figure: 1, reaction cylinder; 2, feeding cylinder; 3, fixing frame; 4, feeding pipe; 5, feeding pipe; 6, air supply pipe; 7, first connecting pipe; 8, second connecting pipe; 9, first driving part; 10, second driving part; 11, liquid replenishing pipe; 12, liquid return pipe; 13, electronic pH meter; 14, feeding pipe; 15, heating jacket; 16, spiral conveying mechanism; 17, first rotating rod; 18, first turbine blade; 19, arc cover; 20, heat absorption jacket ; 21. Fixed block; 22. Air intake sleeve; 23. Third driving part; 24. Second rotating rod; 25. Second turbine blade; 26. Heightening gasket; 27. Through hole; 28. Reaction chamber; 29. ​​Inclined tube; 30. Anti-overflow edge ring; 31. Feed chute; 32. Toggle block; 33. Mounting block; 34. Arc-shaped knocking block; 35. Contact block; 36. Mounting hole; 37. Mounting rod; 38. Torsion spring; 39. Third turbine blade; 40. Stirring rod. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] Reference Figure 1-Figure 9, including a reaction cylinder 1, and also including: a feeding cylinder 2 for feeding materials to the reaction cylinder 1; a heat absorbing sleeve 20 is arranged in the reaction cylinder 1, and a reaction chamber 28 is arranged in the heat absorbing sleeve 20; a feeding pipe 4 is connected between the upper ends of the feeding cylinder 2 and the reaction cylinder 1, and one end of the feeding pipe 4 placed in the reaction cylinder 1 is located in the reaction chamber 28; a stirring rod 40 is arranged in the reaction chamber 28; an air supply pipe 6 is connected between the lower ends of the feeding cylinder 2 and the reaction cylinder 1; a heating sleeve 15 is arranged at the bottom of the feeding cylinder 2; an air intake sleeve 22 is arranged at the bottom of the heat absorbing sleeve 20, and a third turbine blade 3 is arranged in the air intake sleeve 22 9, a second connecting pipe 8 is connected between the upper ends of the heat absorption sleeve 20 and the heating sleeve 15, and a first connecting pipe 7 is connected between the lower end of the heat absorption sleeve 20 and the air inlet sleeve 22; an upwardly inclined oblique pipe 29 is opened in the reaction chamber 28, and the oblique pipe 29 is connected to the reaction chamber 28, and an electronic pH meter 13 is arranged in the oblique pipe 29, and the sensing end of the electronic pH meter 13 faces the reaction chamber 28; a liquid infusion pipe 11 and a liquid return pipe 12 are also respectively arranged in the reaction cylinder 1, and one end of the liquid infusion pipe 11 and the liquid return pipe 12 out of the liquid are both placed in the reaction chamber 28; a feed pipe 14 is arranged at the bottom of the reaction chamber 28.

[0039] In the present invention, the alkali slag solid waste in the feeding barrel 2 enters the reaction chamber 28 through the feeding pipe 4, the acidic solution in the reaction chamber 28 reacts with the alkali slag solid waste to neutralize, and the hydrogen sulfide gas generated by the reaction of the acidic solution and the alkali slag solid waste enters the bottom of the feeding barrel 2 through the gas feeding pipe 6 and reacts with the alkali slag solid waste in the feeding barrel 2.

[0040] In one embodiment, the reaction chamber 28 adds an acidic solution to react with the solid alkali slag, which will produce harmful gases such as hydrogen sulfide, and the hydrogen sulfide gas needs to be treated. Therefore, the reaction is carried out in a closed environment to prevent the hydrogen sulfide gas generated by the reaction from overflowing;

[0041] As the reaction proceeds, the pH value of the acidic solution rises, and it is necessary to add additional acidic solution to keep the overall pH value of the acidic solution at an optimal state so that it can react more fully and quickly with the solid alkali residue. A pH meter can be added outside the reaction chamber 28 to monitor the pH value in real time. The electronic pH meter 13 cannot be directly set in the reaction chamber 28 because the stirring rod 40 will hit the electronic pH meter 13 and the solid alkali residue will collide with the electronic pH meter 13, causing damage to the electronic pH meter 13.

[0042] When the acidic solution reacts with the solid alkali residue, in order to make the acidic solution and the solid alkali residue react more fully, the reactants in the reaction chamber 28 are stirred by the stirring rod 40. The sufficient stirring makes the overall solution in the reaction chamber 28 more uniform. The uniformly mixed solution passes through the electronic pH meter 13 of the inclined tube 29, so that the electronic pH meter 13 can detect the pH value more accurately. The inclined tube 29 is designed to be inclined upward to prevent the solid alkali residue waste from entering the inclined tube 29. If it is not designed in this way, the liquid fluidity in the reaction chamber 28 is not strong, and the pH value of the acidic solution at various locations in the reaction chamber 28 will have a large difference, resulting in the electronic pH meter 13 inaccurately judging the overall pH value, resulting in inaccurate amount of acidic solution added, so that the pH value of the solution in the reaction chamber 28 cannot always maintain the optimal pH value, and the solid alkali residue reacts for a long time and is not treated thoroughly;

[0043] When the electronic pH meter 13 detects a pH value of 7 for a long time, it can be determined that the solid alkali residue has been completely processed. At this time, the valve of the discharge pipe 14 is opened to discharge the residue and solution in the reaction chamber 28;

[0044] When the electronic pH meter 13 detects that the pH value is less than 7 for a long time, the solution is acidic, and it can be judged that the solid alkali residue has been completely processed, and there is still acidic solution in the reaction chamber 28. The residue and solution in the reaction chamber 28 are discharged by opening the valve of the discharge pipe 14, and then the residue and solution are filtered, and the residue is taken out, and the solution that is still acidic after filtration is discharged into the reaction chamber 28 again through the return pipe 12. The replenishment pipe 11 replenishes part of the new acidic solution, so that the pH value of the acidic solution in the reaction chamber 28 is optimal, which avoids waste of resources and is conducive to improving economic benefits;

[0045] When the electronic pH meter 13 detects that the pH value is greater than 7 for a long time and the solution is alkaline, it can be determined that the solid alkali residue has not been completely processed, and the liquid replenishing pipe 11 replenishes new acidic solution to allow it to react fully.

[0046] Reference Figure 1-Figure 9 The reaction cylinder 1 and the feeding cylinder 2 are both fixed by a fixing frame 3. A first driving part 9 and a second driving part 10 are respectively provided above the reaction cylinder 1 and the feeding cylinder 2. A feeding pipe 5 is provided at the bottom of the feeding cylinder 2. A screw conveying mechanism 16 is provided in the feeding cylinder 2. The top of the screw conveying mechanism 16 is fixedly connected to the output end of the second driving part 10. A first rotating rod 17 is rotatably connected in the reaction cylinder 1. The top of the first rotating rod 17 is fixedly connected to the output end of the first driving part 9.

[0047] In the present invention, the internal power sources of the first driving part 9 and the second driving part 10 are both stepping motors, and the first driving part 9 and the second driving part 10 drive the first rotating rod 17 and the screw conveying mechanism 16 respectively;

[0048] The feeding barrel 2 is higher than the reaction barrel 1 to facilitate feeding. Alkali slag solid waste is added to the feeding barrel 2 through the feeding pipe 5. A valve is provided on the feeding pipe 5 for opening and closing the feeding pipe 5. The alkali slag solid waste input from the feeding pipe 5 will gather at the bottom of the feeding barrel 2.

[0049] Reference Figure 1-Figure 9 A third driving part 23 is provided in the reaction tube 1, a second rotating rod 24 is rotatably connected in the reaction tube 1, the top end of the second rotating rod 24 is located in the air intake sleeve 22, the third turbine blade 39 is fixedly connected to the second rotating rod 24, the lower end of the second rotating rod 24 is provided with a second turbine blade 25, and the bottom end of the second rotating rod 24 is fixedly connected to the output end of the third driving part 23; the heat absorption sleeve 20 is fixed in the reaction tube 1 through a fixing block 21, and a heightening gasket 26 is provided on the heat absorption sleeve 20, and through holes 27 are opened in a circumferential distribution on the heightening gasket 26, and an arc cover 19 is provided on the heightening gasket 26.

[0050] In the present invention, the internal power source of the third driving part 23 is a stepping motor. The third driving part 23 is used to drive the second rotating rod 24 to rotate. When the second rotating rod 24 rotates, the second rotating rod 24 drives the second turbine blades 25 and the third turbine blades 39 to rotate. When the second turbine blades 25 rotate, the second turbine blades 25 discharge the hydrogen sulfide gas above the reaction tube 1 to the bottom of the reaction tube 1. The hydrogen sulfide gas eventually enters the bottom of the feeding tube 2 through the air delivery pipe 6. The hydrogen sulfide gas fully reacts with the alkali slag solid waste accumulated at the bottom of the feeding tube 2, thereby eliminating the hydrogen sulfide gas. The hydrogen sulfide gas is processed from the inside to avoid the overflow of the hydrogen sulfide gas, and the processing process of the hydrogen sulfide gas is optimized, which is conducive to improving economic benefits.

[0051] The hydrogen sulfide gas and water vapor generated in the reaction chamber 28 overflow through the through hole 27 and enter the reaction tube 1 .

[0052] Reference Figure 8 In one embodiment, a spiral pipe is provided in the heat absorption sleeve 20, and one end of the second connecting pipe 8 is connected to the spiral pipe above the heat absorption sleeve 20, so as to discharge the gas in the heating sleeve 15 into the heat absorption sleeve 20, and the lowermost outlet of the spiral pipe in the heat absorption sleeve 20 is connected to the air inlet sleeve 22.

[0053] The reaction between the alkali slag solid waste and the acidic solution in the reaction chamber 28 is an exothermic reaction, which will release a large amount of heat, which is easy to cause thermal deformation or softening of the reaction chamber 28 material, reducing its mechanical properties and bearing capacity. At the same time, an overly intense reaction may cause the pressure in the container to rise rapidly, resulting in damage to the reaction chamber 28 and affecting its service life. The heat absorbing sleeve 20 takes away part of the heat released by the reaction between the alkali slag solid waste and the acidic solution in the reaction chamber 28, thereby avoiding excessively high temperature in the reaction chamber 28 and extending the service life of the reaction chamber 28.

[0054] Furthermore, the hydrogen sulfide gas generated by the reaction of the alkaline slag solid waste with the acidic solution is generally mixed with water vapor. When the hydrogen sulfide gas and water vapor are passed into the feeding tube 2, the hydrogen sulfide gas and water vapor are cooled, which easily causes the water vapor to condense into water droplets attached to the inner wall of the pipeline and the inner wall of the tube. The hydrogen sulfide gas is also easily soluble in water, so that part of the hydrogen sulfide gas combines with water to form hydrogen sulfide hydrate. The hydrogen sulfide hydrate is highly corrosive to the pipeline. At the same time, the hydrogen sulfide gas cannot be fully utilized, resulting in an increase in the consumption of the acidic solution in the subsequent reaction chamber. When the third turbine blade 39 rotates, the third turbine blade 39 sucks the hot gas inside the heat absorption sleeve 20 into the air intake sleeve 22. The hot gas entering the air intake sleeve 22 passes through the first connecting pipe 7. The hot gas is discharged into the heating sleeve 15, and the hot gas heats the heating sleeve 15, so that the heating sleeve 15 heats the bottom of the feeding barrel 2 to prevent the hydrogen sulfide gas and water vapor at the bottom of the feeding barrel 2 from condensing when cold, resulting in part of the hydrogen sulfide gas being unable to be fully utilized. It should be noted that part of the hydrogen sulfide gas that cannot be fully utilized here will react with water vapor to generate hydrosulfuric acid, and the generated hydrosulfuric acid accumulates at the bottom of the feeding barrel 2, and cannot fully react with the alkali slag solid waste on the spiral conveying mechanism 16. At the same time, the hydrosulfuric acid aqueous solution is prevented from continuously corroding the pipeline, and the bottom of the feeding barrel 2 is heated at the same time, so that the temperature of this part is maintained at the optimal reaction condition of the hydrogen sulfide gas and the alkali slag solid waste, which is conducive to improving its reaction efficiency;

[0055] Through the above cycle, the heated gas in the heat absorption jacket 20 enters the air inlet jacket 22, and the hot gas entering the air inlet jacket 22 is discharged into the heating jacket 15 through the first connecting pipe 7. The hot gas entering the heating jacket 15 returns to the heat absorption jacket 20 again through the second connecting pipe 8. The second connecting pipe 8 is placed in the outside pipeline and can be fully cooled on the way.

[0056] Reference Figure 1-Figure 9 The port of the reaction chamber 28 is provided with an overflow prevention edge ring 30, and the reaction chamber 28 is provided with a feed chute 31, and one end of the feed pipe 4 located in the reaction chamber 28 corresponds to the feed chute 31; a mounting block 33 is provided on the arc cover 19, and a mounting hole 36 is provided on the mounting block 33; an arc-shaped knocking block 34 is rotatably connected to the mounting block 33, and a mounting rod 37 is provided at one end of the arc-shaped knocking block 34 close to the mounting block 33, and a torsion spring 38 is sleeved on the mounting rod 37, and the mounting rod 37 is provided with a torsion spring 38. and the torsion spring 38 are installed in the mounting hole 36, the end of the arc-shaped knocking block 34 close to the mounting block 33 is provided with a contact block 35, and the end of the arc-shaped knocking block 34 away from the mounting block 33 cooperates with the feeding tube 4; the upper end of the first rotating rod 17 is provided with a first turbine blade 18, and the first rotating rod 17 is provided with a toggle block 32 that cooperates with the contact block 35, the stirring rod 40 is fixedly connected to the bottom end of the first rotating rod 17, and the stirring rod 40 is in contact with the bottom surface of the reaction chamber 28.

[0057] In the present invention, the overflow prevention ring 30 is in the shape of an inclined chute. When the alkali residue solid waste reacts violently with the acid solution and the stirring rod 40 stirs, the liquid level in the reaction chamber 28 will fluctuate, and the overflow prevention ring 30 can prevent the solution from overflowing.

[0058] The alkali residue solid waste is transported to the unloading trough 31 through the feeding pipe 4 to prevent the alkali residue solid waste from causing the solution in the reaction chamber 28 to splash during unloading.

[0059] In one embodiment, the first rotating rod 17 rotates to drive the first turbine blade 18 to rotate, and the first turbine blade 18 discharges the air above the reaction tube 1 downward, so that the hydrogen sulfide gas generated in the reaction chamber 28 is accelerated to flow into the feeding tube 2;

[0060] The alkali residue solid waste is in the form of solid particles. The feed pipe 4 has a bend in the reaction tube 1. The alkali residue solid waste is easy to block the feed pipe 4. Every time the first rotating rod 17 rotates one circle, the toggle block 32 toggles the contact block 35 once. When the toggle block 32 presses and presses the contact block 35, the arc-shaped knocking block 34 is moved away from the feed pipe 4, and the torsion spring 38 on the mounting rod 37 is twisted. When the toggle block 32 is separated from the contact block 35, the torsion spring 38 is reset, so that the arc-shaped knocking block 34 is reset and knocks on the feed pipe 4, so that the feed pipe 4 vibrates to prevent the feed pipe 4 from being blocked.

[0061] The stirring rod 40 is matched with the size of the reaction chamber 28, and the stirring rod 40 is in contact with the bottom surface of the reaction chamber 28, so that the stirring rod 40 becomes a fulcrum to stabilize the rotation of the first rotating rod 17. At the same time, when discharging the solution and waste residue in the reaction chamber 28, the stirring rod 40 can scrape off the waste residue at the bottom of the reaction chamber 28.

[0062] Reference Figure 1-Figure 9 , a method for using a alkali slag solid waste neutralization device, comprising the following steps:

[0063] S1, the liquid infusion tube 11 flushes the acidic solution into the reaction chamber 28;

[0064] S2, the screw conveying mechanism 16 conveys the alkali residue solid waste in the feeding tube 2 to the upper side, and the alkali residue solid waste enters the reaction chamber 28 through the feeding pipe 4, and the acid solution in the reaction chamber 28 reacts with the alkali residue solid waste to neutralize;

[0065] S3, the first rotating rod 17 drives the stirring rod 40 to stir, so that the acid solution in the reaction chamber 28 and the alkali slag solid waste fully react, and the electronic pH meter 13 determines whether the reaction is sufficient by detecting the pH value in the reaction chamber 28;

[0066] S4. The hydrogen sulfide gas generated by the reaction of the acidic solution and the alkali slag solid waste overflows into the reaction tube 1 through the through hole 27. The first turbine blade 18 and the second turbine blade 25 discharge the hydrogen sulfide gas into the air inlet pipe 6. The hydrogen sulfide gas enters the bottom of the feeding tube 2 through the air supply pipe 6, reacts with the alkali slag solid waste in the feeding tube 2, and eliminates the hydrogen sulfide gas inside.

[0067] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A alkali residue solid waste neutralization device, comprising a reaction tube (1), characterized in that: Also includes: A feeding cylinder (2) for feeding materials into the reaction cylinder (1); A heat absorbing sleeve (20) is provided in the reaction cylinder (1), and a reaction chamber (28) is provided in the heat absorbing sleeve (20); A feeding tube (4) is connected between the upper ends of the feeding tube (2) and the reaction tube (1); one end of the feeding tube (4) placed in the reaction tube (1) is located in the reaction chamber (28); A stirring rod (40) is disposed in the reaction chamber (28); The lower ends of the feeding cylinder (2) and the reaction cylinder (1) are connected to an air supply pipe (6); A heating sleeve (15) is arranged at the bottom of the feeding cylinder (2); An air intake sleeve (22) is provided at the bottom of the heat absorption sleeve (20), a third turbine blade (39) is provided in the air intake sleeve (22), a second connecting pipe (8) is connected between the upper ends of the heat absorption sleeve (20) and the heating sleeve (15), and a first connecting pipe (7) is connected between the lower end of the heat absorption sleeve (20) and the air intake sleeve (22); An upwardly inclined tube (29) is provided in the reaction chamber (28), the inclined tube (29) being in communication with the reaction chamber (28), an electronic pH meter (13) being provided in the inclined tube (29), the sensing end of the electronic pH meter (13) facing the reaction chamber (28); A liquid infusion pipe (11) and a liquid return pipe (12) are also provided in the reaction cylinder (1), and the liquid outlet ends of the liquid infusion pipe (11) and the liquid return pipe (12) are both placed in the reaction chamber (28); A feed pipe (14) is provided at the bottom of the reaction chamber (28); The device realizes the neutralization reaction by the following steps: S1, the liquid replenishing pipe (11) flushes the acidic solution into the reaction chamber (28); S2, the alkali residue solid waste in the feeding cylinder (2) enters the reaction chamber (28) through the feeding pipe (4), and the acid solution in the reaction chamber (28) reacts with the alkali residue solid waste to undergo a neutralization reaction; S3, stirring with the stirring rod (40) to allow the acidic solution to fully react with the alkali slag solid waste, and the electronic pH meter (13) determines whether the reaction is sufficient by detecting the pH value in the reaction chamber (28); S4. The hydrogen sulfide gas generated by the reaction of the acidic solution and the alkali slag solid waste enters the bottom of the feeding barrel (2) through the gas delivery pipe (6) and reacts with the alkali slag solid waste in the feeding barrel (2).

2. The alkali slag solid waste neutralization device according to claim 1, characterized in that: The reaction cylinder (1) and the feeding cylinder (2) are both fixed by a fixing frame (3); a first driving part (9) and a second driving part (10) are respectively provided above the reaction cylinder (1) and the feeding cylinder (2); and a conveying pipe (5) is provided at the bottom end of the feeding cylinder (2).

3. The alkali slag solid waste neutralization device according to claim 2, characterized in that: A screw conveying mechanism (16) is provided in the feeding cylinder (2), the top end of the screw conveying mechanism (16) is fixedly connected to the output end of the second driving part (10), and a first rotating rod (17) is rotatably connected in the reaction cylinder (1), the top end of the first rotating rod (17) is fixedly connected to the output end of the first driving part (9).

4. The alkali slag solid waste neutralization device according to claim 1, characterized in that: A third driving part (23) is provided in the reaction cylinder (1), a second rotating rod (24) is rotatably connected in the reaction cylinder (1), the top end of the second rotating rod (24) is located in the air intake sleeve (22), the third turbine blade (39) is fixedly connected to the second rotating rod (24), the lower end of the second rotating rod (24) is provided with a second turbine blade (25), and the bottom end of the second rotating rod (24) is fixedly connected to the output end of the third driving part (23).

5. The alkali slag solid waste neutralization device according to claim 3, characterized in that: The heat absorbing sleeve (20) is fixed in the reaction cylinder (1) via a fixing block (21); a heightening gasket (26) is provided on the heat absorbing sleeve (20); through holes (27) are provided on the heightening gasket (26) in a circumferentially distributed manner; and an arc-shaped cover (19) is provided on the heightening gasket (26).

6. The alkali slag solid waste neutralization device according to claim 1, characterized in that: The port of the reaction chamber (28) is provided with an anti-overflow edge ring (30), the reaction chamber (28) is provided with a material discharge chute (31), and one end of the feed pipe (4) located in the reaction chamber (28) corresponds to the material discharge chute (31).

7. The alkali slag solid waste neutralization device according to claim 5, characterized in that: The arc-shaped cover (19) is provided with a mounting block (33), and the mounting block (33) is provided with a mounting hole (36).

8. The alkali slag solid waste neutralization device according to claim 7, characterized in that: The mounting block (33) is rotatably connected to an arc-shaped knocking block (34); an end of the arc-shaped knocking block (34) close to the mounting block (33) is provided with a mounting rod (37); a torsion spring (38) is sleeved on the mounting rod (37); the mounting rod (37) and the torsion spring (38) are both mounted in the mounting hole (36); an end of the arc-shaped knocking block (34) close to the mounting block (33) is provided with a contact block (35); and an end of the arc-shaped knocking block (34) away from the mounting block (33) cooperates with the feeding pipe (4).

9. The alkali slag solid waste neutralization device according to claim 8, characterized in that: A first turbine blade (18) is provided at the upper end of the first rotating rod (17), a toggle block (32) that cooperates with the contact block (35) is provided on the first rotating rod (17), the stirring rod (40) is fixedly connected to the bottom end of the first rotating rod (17), and the stirring rod (40) is in contact with the bottom surface of the reaction chamber (28).

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