A neutralization device for waste acid and base

Abstract

The utility model discloses a kind of waste acid-base neutralization device, comprising: mixed sleeve, mixing assembly, discharge assembly and feed assembly, mixed sleeve is used for the accommodation of waste acid-base, the inner chamber of mixed sleeve is connected to the side of mixing assembly, feed assembly includes the feed portion of the top of one side of mixed sleeve, the connecting place of feed portion and mixed sleeve is provided with the flow dispersion part for waste acid-base outflow dispersion;Discharge assembly is set to one side bottom of mixed sleeve, and discharge assembly is used for the discharge of neutralized brine.The utility model is provided with mixing assembly in the inner chamber of mixed sleeve to carry out the neutralization stirring of waste acid-base, while being provided with feed assembly in one side top of mixed sleeve, using the flow dispersion part of feed portion outlet in feed assembly, using flow dispersion part to disperse the feed of waste acid-base, to increase the reaction area of acid-base, avoid the heat gas aggregation release caused by acid-base concentrated contact to cause liquid material splashing.

Description

Technical Field

[0001] This utility model relates to the field of neutralization reactors, and in particular to a neutralization device for waste acids and alkalis. Background Technology

[0002] In the field of industrial wastewater treatment, especially in the neutralization process of waste acid and alkali generated by the chemical, electroplating and metallurgical industries, efficient and safe mixing reaction is the core link to ensure that the effluent water quality meets the standards. Traditional waste acid and alkali neutralization devices generally adopt a pipeline straight-through type or a simple stirring tank structure.

[0003] However, when waste acid (sulfuric acid, hydrochloric acid) and waste alkali (sodium hydroxide solution) are directly injected into the mixing chamber through a single inlet, the reaction area is limited and the waste acid and alkali are not dispersed. This results in a high-concentration reaction zone forming in the initial contact area. The strong acid and alkali neutralize instantly, releasing a large amount of heat, causing a sharp rise in local temperature. This promotes the vaporization of water and generates high-pressure water vapor. If it is not diffused in time, the sudden increase in pressure will cause a boiling phenomenon, resulting in corrosive droplets hitting the inner wall at high speed. This causes abnormal noise in the mixing chamber and affects the normal use of the equipment.

[0004] Therefore, how to achieve the dispersion of feed and the expansion of the reaction zone during the neutralization of waste acid and alkali has become a technical problem that urgently needs to be solved in wastewater treatment technology. Utility Model Content

[0005] The purpose of this invention is to provide a device for neutralizing waste acid and alkali to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a neutralization device for waste acid and alkali, comprising: A mixing sleeve for containing waste acids and alkalis; A mixing component, wherein the side of the mixing component is inserted into the inner cavity of the mixing sleeve, and the mixing component is used for stirring and mixing waste acid and alkali; The feeding assembly is used to feed waste acid and alkali into the mixing sleeve. The feeding assembly includes a feeding part disposed on the top of one side of the mixing sleeve, and a diffuser for dispersing the outflow of waste acid and alkali is provided at the connection between the feeding part and the mixing sleeve. The discharge assembly is located at the bottom of one side of the mixing sleeve and is used to discharge the neutralized brine.

[0007] Preferably, the hybrid component includes: A spiral mixing rod, one end of which is inserted into the inner cavity of a mixing sleeve, is used for stirring and mixing waste acid and alkali. An electric motor, the output end of which is fixedly connected to the other end of a spiral mixing rod.

[0008] Preferably, the feeding section includes: Mounting plate, the bottom of which is inserted and connected to the top of one side of the mixing sleeve, and the diffuser is disposed at the bottom of the mounting plate; A fastener is provided at the connection between the mounting plate and the mixing sleeve, and the fastener is used to install and fix the mounting plate; An acid inlet pipe is provided on one side of the top of the mounting plate and is used for feeding waste acid. An alkali inlet pipe is located on the other side of the top of the mounting plate and is used for feeding waste acid and alkali.

[0009] Preferably, the fastener includes fixing screws, and the ends of a plurality of fixing screws are symmetrically interlocked at the connection between the mounting plate and the mixing sleeve.

[0010] Preferably, the diffuser includes: A plurality of water distribution plates are symmetrically arranged at the bottom of the mounting plate, and the plurality of water distribution plates are respectively used for the discharge bearing of the acid inlet pipe and the alkali inlet pipe; A flow groove is formed on the top of the water distribution plate, and the flow groove is used for the flow of waste acid and alkali; The outflow holes are all formed on the inner wall of the flow groove, and the outflow holes are used for the dispersion and outflow of waste acid and alkali.

[0011] Preferably, the discharge assembly includes: The discharge pipe is located at the bottom of the other side of the mixing sleeve and is used to discharge the neutralized brine. A control valve is provided at the outlet end of the discharge pipe, and the control valve is used to control the discharge of neutralized brine.

[0012] Preferably, the inlet end of the discharge pipe is provided with an intercepting net, which is used for filtering the inlet water of the discharge pipe.

[0013] The technical effects and advantages of this utility model are as follows: This invention uses a mixing component installed inside the mixing sleeve to neutralize and stir waste acid and alkali. At the same time, a feeding component is installed on the top side of the mixing sleeve. A diffuser is installed at the outlet of the feeding component to disperse the feed of waste acid and alkali, thereby increasing the reaction area of ​​acid and alkali and avoiding concentrated contact between acid and alkali, which would cause the heat and gas generated by the neutralization reaction to accumulate and release, resulting in liquid splashing. Attached Figure Description

[0014] Figure 1 This is a front view of the entire utility model.

[0015] Figure 2This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 3 This is a cross-sectional view of the entire utility model.

[0017] Figure 4 This utility model Figure 3 Enlarged view of the structure at point A in the middle.

[0018] In the diagram: 1. Mixing sleeve; 101. Acid inlet pipe; 102. Alkali inlet pipe; 103. Discharge pipe; 104. Control valve; 2. Spiral mixing rod; 3. Motor; 4. Spreading plate; 401. Flow groove; 402. Outlet hole; 5. Mounting plate; 501. Fixing screw; 6. Interception net. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1: This utility model provides the following... Figure 1 - Figure 4 The waste acid and alkali neutralization device shown includes: a mixing sleeve 1, a mixing component, a feeding component, and a discharging component; Specifically, the mixing sleeve 1 is used to contain waste acid and alkali. The side of the mixing component is inserted into the inner cavity of the mixing sleeve 1. The mixing component is used to stir and mix the waste acid and alkali. The feeding component is used to allow the waste acid and alkali to enter the mixing sleeve 1. The discharge component is set at the bottom of one side of the mixing sleeve 1. The discharge component is used to discharge the neutralized brine.

[0021] It should be noted that the feeding assembly includes a feeding section located at the top of one side of the mixing sleeve 1, and a diffuser is provided at the connection between the feeding section and the mixing sleeve 1 for dispersing the waste acid and alkali outflow. The mixing sleeve 1 is made of acid and alkali resistant material. Furthermore, the mixing assembly includes: a helical mixing rod 2 and a motor 3; It should be noted that one end of the spiral mixing rod 2 is inserted into the inner cavity of the mixing sleeve 1. The spiral mixing rod 2 is used for stirring and mixing waste acid and alkali. The output end of the motor 3 is fixedly connected to the other end of the spiral mixing rod 2. Specifically, the spiral mixing rod 2 and the output end of the motor 3 are connected and fixed by a coupling. The working principle of the overall spiral mixing rod 2 and the mixing sleeve 1 is referenced to the 165-type auger screw conveyor.

[0022] It should be noted that the feeding section includes: mounting plate 5, fasteners, acid inlet pipe 101 and alkali inlet pipe 102; Specifically, the bottom of the mounting plate 5 is inserted and connected to the top of one side of the mixing sleeve 1, the diffuser is set at the bottom of the mounting plate 5, the fixing member is set at the connection between the mounting plate 5 and the mixing sleeve 1, the fixing member is used for the installation and fixing of the mounting plate 5, the acid inlet pipe 101 is set on the top side of the mounting plate 5, the acid inlet pipe 101 is used for the feeding of waste acid, and the alkali inlet pipe 102 is set on the top other side of the mounting plate 5. It should be noted that the alkali inlet pipe 102 is used for feeding waste acid and alkali. Both the acid inlet pipe 101 and the alkali inlet pipe 102 are connected to the mounting plate 5 by interlocking, and the interlocking parts are fixed by welding. Both the acid inlet pipe 101 and the alkali inlet pipe 102 are connected to the inner cavity of the mixing sleeve 1.

[0023] It should be noted that the fasteners include fixing screws 501, and the ends of multiple fixing screws 501 are symmetrically inserted and connected to the connection between the mounting plate 5 and the mixing sleeve 1. Specifically, the outer side of the mixing sleeve 1 is provided with a screw groove through which the fixing screw 501 is inserted, and the side of the mounting plate 5 is provided with a through hole through which the fixing screw 501 is inserted.

[0024] Furthermore, the diffuser includes: a diffuser plate 4, a flow groove 401, and an outlet hole 402; It should be noted that multiple water distribution plates 4 are symmetrically arranged at the bottom of the mounting plate 5, the flow groove 401 is opened at the top of the water distribution plate 4, and multiple outflow holes 402 are all opened on the inner wall of the flow groove 401. Furthermore, multiple water distribution plates 4 are used to support the discharge of acid inlet pipe 101 and alkali inlet pipe 102 respectively, flow groove 401 is used for the flow of waste acid and alkali, and outlet hole 402 is used for the dispersion and discharge of waste acid and alkali. Specifically, the water distribution plate 4 and the mounting plate 5 are fixed by welding. The discharges of the acid inlet pipe 101 and the alkali inlet pipe 102 fall into the flow groove 401 of the water distribution plate 4 at their respective outlets. Multiple outlet holes 402 disperse the waste acid and waste alkali into the outlets respectively.

[0025] Example 2: A discharge component applied to the waste acid and alkali neutralization device in Example 1.

[0026] Specifically, the discharge assembly includes: discharge pipe 103 and control valve 104; It should be noted that the discharge pipe 103 is located at the bottom of the other side of the mixing sleeve 1. The discharge pipe 103 is used to discharge the neutralized brine. The control valve 104 is located at the water outlet end of the discharge pipe 103. The control valve 104 is used to control the discharge of the neutralized brine. Furthermore, the discharge pipe 103 is welded to the mixing sleeve 1, and the discharge pipe 103 is connected to the inner cavity of the mixing sleeve 1. An interception net 6 is provided at the water inlet end of the discharge pipe 103, and the interception net 6 is used for water inlet filtration of the discharge pipe 103. It should be noted that the interception net 6 is fixed to the discharge pipe 103 by welding to prevent foreign objects from entering the discharge pipe 103.

[0027] In actual use, a mixing component is installed in the inner cavity of the mixing sleeve 1 to neutralize and stir the waste acid and alkali. At the same time, a feeding component is installed on the top side of the mixing sleeve 1. A diffuser is installed at the outlet of the feeding component to disperse the feed of waste acid and alkali, thereby increasing the reaction area of ​​acid and alkali and avoiding concentrated contact between acid and alkali, which would cause the heat and gas generated by the neutralization reaction to accumulate and release, resulting in liquid splashing.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A neutralization device for waste acid and alkali, characterized in that, include: A mixing sleeve (1) is used to contain waste acid and alkali; A mixing component, the side of which is inserted into the inner cavity of the mixing sleeve (1), the mixing component is used for stirring and mixing waste acid and alkali; The feeding assembly is used to feed waste acid and alkali into the mixing sleeve (1). The feeding assembly includes a feeding part disposed on the top of one side of the mixing sleeve (1). A diffuser is provided at the connection between the feeding part and the mixing sleeve (1) for dispersing the outflow of waste acid and alkali. The discharge assembly is located at the bottom of one side of the mixing sleeve (1) and is used to discharge the neutralized brine.

2. The waste acid and alkali neutralization device according to claim 1, characterized in that, The hybrid component includes: A spiral mixing rod (2) is inserted into the inner cavity of a mixing sleeve (1) at one end. The spiral mixing rod (2) is used for stirring and mixing waste acid and alkali. The output end of the electric motor (3) is fixedly connected to the other end of the spiral mixing rod (2).

3. The waste acid and alkali neutralization device according to claim 1, characterized in that, The feeding section includes: Mounting plate (5), the bottom of which is inserted and connected to the top of one side of the mixing sleeve (1), and the diffuser is provided at the bottom of the mounting plate (5); A fastener is provided at the connection between the mounting plate (5) and the mixing sleeve (1), and the fastener is used for the installation and fixing of the mounting plate (5); An acid inlet pipe (101) is provided on one side of the top of the mounting plate (5) and is used for feeding waste acid. Alkali inlet pipe (102) is located on the other side of the top of the mounting plate (5) and is used for feeding waste acid and alkali.

4. The waste acid and alkali neutralization device according to claim 3, characterized in that, The fastener includes a fixing screw (501), and the ends of a plurality of fixing screws (501) are symmetrically inserted and connected to the connection between the mounting plate (5) and the mixing sleeve (1).

5. The waste acid and alkali neutralization device according to claim 3, characterized in that, The diffuser includes: Water distribution plate (4), multiple water distribution plates (4) are symmetrically arranged at the bottom of the mounting plate (5), and multiple water distribution plates (4) are respectively used for the discharge bearing of acid inlet pipe (101) and alkali inlet pipe (102); A flow groove (401) is provided on the top of the water distribution plate (4), and the flow groove (401) is used for the flow of waste acid and alkali. Outlet holes (402), a plurality of the outlet holes (402) are formed on the inner wall of the flow groove (401), and the outlet holes (402) are used for the dispersion and outflow of waste acid and alkali.

6. The waste acid and alkali neutralization device according to claim 1, characterized in that, The discharge assembly includes: The discharge pipe (103) is located at the bottom of the other side of the mixing sleeve (1) and is used to discharge the neutralized brine. A control valve (104) is provided at the outlet end of the discharge pipe (103) and is used to control the discharge of neutralized brine.

7. The waste acid / alkali neutralization device according to claim 6, characterized in that, The inlet end of the discharge pipe (103) is provided with an interception net (6), which is used for filtering the water inlet of the discharge pipe (103).

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