CN219507736U

CN219507736U - Waste acid neutralization reactor

Info

Publication number: CN219507736U
Application number: CN202320530109.0U
Authority: CN
Inventors: 刘松; 高月; 潘庆祥; 姜灿; 刘东洋
Original assignee: Hubei Jiuning Chemical Technology Co ltd
Current assignee: Hubei Jiuning Chemical Technology Co ltd
Priority date: 2023-03-17
Filing date: 2023-03-17
Publication date: 2023-08-11
Anticipated expiration: 2033-03-17

Abstract

The waste acid neutralization reactor comprises a rotary drum, an underframe body, a feeding box and a discharging box, wherein the rotary drum comprises an outer steel support cylinder body, the outer steel support cylinder body is arranged on the underframe body and is obliquely arranged, the outer steel support cylinder body can rotate around the axis of the outer steel support cylinder body, and an inner cylinder body is arranged in the outer steel support cylinder body; in summary, the rotary drum is adopted to drive the internal waste acid reaction neutralization materials to precess forward, the waste acid reaction neutralization materials sequentially pass through the pre-reaction cavity, the reaction cavity and the buffer cavity, the internal screw pitches of the pre-reaction cavity, the reaction cavity and the buffer cavity are sequentially reduced according to the reaction condition, so that the neutralization reaction is as complete as possible, and in addition, lime milk can be added into the buffer cavity to adjust the PH value, so that the discharge is alkaline; the utility model has reasonable structural design, and can fully neutralize the waste acid to reach the emission standard.

Description

Waste acid neutralization reactor

Technical Field

The utility model belongs to the technical field of waste acid treatment, and particularly relates to a waste acid neutralization reactor.

Background

The traditional process waste acid treatment generally adopts a neutralization tank or a neutralization pool to carry out neutralization reaction, but a large amount of carbon dioxide gas generated in the reaction process can generate a phenomenon of overflowing the tank, a large amount of heat is released in the reaction process, and the reaction process is uncontrollable; in addition, the reaction tank or the reaction tank is adopted for reaction, the intermittent reaction operation is adopted, the condition that the product coats the reactant can occur in the reaction process, the reaction is insufficient, the consumption ration of raw materials is increased, the cost of waste acid treatment is increased, and meanwhile, the treatment capacity of the device can be reduced in the intermittent operation.

Disclosure of Invention

The utility model aims to provide a waste acid neutralization reactor, which solves the technical problems of low waste acid neutralization efficiency and high treatment cost in the prior art.

In order to solve the technical problems, the utility model adopts the following technical scheme: the waste acid neutralization reactor comprises a rotary drum, an underframe body, a feeding box and a discharging box, wherein the rotary drum comprises an outer steel support cylinder body, the outer steel support cylinder body is arranged on the underframe body and is obliquely arranged, the outer steel support cylinder body can rotate around the axis of the outer steel support cylinder body, an inner cylinder body is arranged in the outer steel support cylinder body, the inner cylinder body is fixedly connected with the outer steel support cylinder body, and the length of the inner cylinder body is larger than that of the outer steel support cylinder body; the two ends of the inner cylinder body are respectively a discharge end and a feed end, the feed box is arranged at the feed end of the inner cylinder body, the discharge box is arranged at the discharge end of the inner cylinder body, and the feed box and the discharge box are respectively in rotary seal with the end part of the inner cylinder body;

the inner wall of the inner cylinder body is provided with a helical blade, the inner cavity of the inner cylinder body is divided into a pre-reaction cavity, a reaction cavity and a buffer cavity, wherein the helical pitches of the helical blade in the pre-reaction cavity, the reaction cavity and the buffer cavity are gradually reduced;

the chassis body is also provided with a motor and a speed reducer, the motor is connected with the speed reducer, a power output shaft of the speed reducer is provided with a gear, the outer steel support cylinder body is provided with a large gear ring, and the gear is meshed with the large gear ring;

the feeding box is provided with a calcium carbonate inlet, a waste acid inlet and a sewage outlet, the discharging box is provided with a lime milk inlet, a solid material outlet and a liquid slurry outlet, and the tops of the feeding box and the discharging box are respectively provided with an exhaust port; the discharging end of the inner barrel is provided with a circle of filtering holes, the inner wall of the bottom of the discharging box is fixedly provided with a baffle plate and an inclined plate, the upper ends of the baffle plate and the inclined plate are fixedly connected, the upper end of the baffle plate is positioned below the discharging end of the inner barrel, the lower end of the inclined plate extends to a solid material outlet, and the liquid slurry outlet is positioned on the inner side of the baffle plate.

Furthermore, the manufacturing materials of the inner cylinder body and the helical blades are PP materials.

Further, an air exhaust fan is arranged at the air exhaust port.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the rotary drum is adopted to rotate to drive the internal waste acid reaction neutralization materials to advance forward, the waste acid reaction neutralization materials sequentially pass through the pre-reaction cavity, the reaction cavity and the buffer cavity, the preliminary reaction is carried out in the pre-reaction cavity, the screw pitch of the helical blades in the pre-reaction cavity is larger, more solid materials can be pushed in, then the reaction cavity is carried out, the screw pitch in the reaction cavity is reduced, the residence time is prolonged, so that the neutralization reaction is sufficient, finally the final reaction is carried out through the buffer cavity, the screw pitch in the cavity is further reduced, the residence time is further prolonged, the reaction is as complete as possible, and in addition, lime milk can be added into the buffer cavity to adjust the PH value, so that the discharge is alkaline; the utility model has reasonable structural design, and can fully neutralize the waste acid to reach the emission standard; the waste acid neutralization reactor provided by the utility model is used for neutralization reaction, belongs to continuous neutralization operation, increases the neutralization treatment capacity of the device, and the reactant slowly and spirally advances in the neutralization reactor, so that the generated carbon dioxide gas does not appear a phenomenon of bubbling, the safety performance of the device is increased, in addition, raw materials are fully contacted in the device, the reaction is more complete, the consumption and the quota of the raw materials are reduced, and the waste acid treatment cost is reduced.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of a spent acid neutralization reactor according to the present utility model;

fig. 2 is an enlarged view at a in fig. 1.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The present utility model is described in further detail below with reference to examples.

As shown in fig. 1 and 2, the utility model provides a specific example 1 of a waste acid neutralization reactor:

the waste acid neutralization reactor comprises a rotary drum 1, a bottom frame body 2, a feeding box 3 and a discharging box 4, wherein the rotary drum 1 comprises an outer steel support cylinder body, the thickness of the cylinder wall of the outer steel support cylinder body is 8mm, the outer steel support cylinder body is arranged on the bottom frame body 2, the outer steel support cylinder body is obliquely arranged, the outer steel support cylinder body can rotate around the axis of the outer steel support cylinder body, an inner cylinder body is arranged in the outer steel support cylinder body, the thickness of the cylinder wall of the inner cylinder body is 20mm, the inner cylinder body is fixedly connected with the outer steel support cylinder body, and the length of the inner cylinder body is larger than that of the outer steel support cylinder body; the two ends of the inner cylinder body are respectively provided with a discharge end 5 and a feed end 6, the feed box 3 is arranged at the feed end 6 of the inner cylinder body, the discharge box 4 is arranged at the discharge end 5 of the inner cylinder body, the feed box 3 and the discharge box 4 are respectively in rotary seal with the end parts of the inner cylinder body, when in operation, the rotary drum 1 rotates, and the feed box 3 and the discharge box 4 are fixed on a certain frame or platform;

the inner wall of the inner barrel is provided with a helical blade 7, the inner cavity of the inner barrel is divided into a pre-reaction cavity 8, a reaction cavity 9 and a buffer cavity 10, the screw pitches of the helical blade 7 in the pre-reaction cavity 8, the reaction cavity 9 and the buffer cavity 10 are gradually reduced, solid materials in the pre-reaction cavity 8 are more, the preliminary reaction is performed, the helical interval is large, the reaction cavity 9 is a main reaction stage, the helical interval is reduced, the residence time is prolonged, the buffer cavity 10 is the final reaction stage, the helical interval is further reduced, the residence time is further prolonged, the reaction is completed as much as possible, and meanwhile, lime milk is added into a lime milk inlet 11 to adjust the PH value, so that the discharge is alkaline.

The chassis body 2 is also provided with a motor 12 and a speed reducer 13, the motor 12 is connected with the speed reducer 13, a power output shaft of the speed reducer 13 is provided with a gear, the outer steel support cylinder body is provided with a large gear ring 14, and the gear is meshed with the large gear ring 14; the motor 12 drives the speed reducer 13, and the speed reducer 13 is meshed with the large gear ring 14 through a gear to drive the outer steel support cylinder to rotate.

The feeding box 3 is provided with a calcium carbonate inlet 15, a waste acid inlet 16 and a sewage outlet 17, the discharging box 4 is provided with a lime milk inlet 11, a solid material outlet 18 and a liquid slurry outlet 19, and the tops of the feeding box 3 and the discharging box 4 are respectively provided with an exhaust port 20; the part of the discharge end 5 of the inner cylinder body extending into the discharge box 4 is 600mm, 400mm is fully distributed with the filter holes 21, the baffle 22 and the sloping plate 23 are fixed on the inner wall of the bottom of the discharge box 4, the baffle 22 is fixedly connected with the upper end of the sloping plate 23, the upper end of the baffle 22 is positioned below the discharge end 5 of the inner cylinder body, the lower end of the sloping plate 23 extends to the solid material outlet 18, the liquid slurry outlet 19 is positioned on the opposite inner side of the baffle 22, the completely reacted liquid material enters the bottom of the discharge box 4 through the filter holes 21 and is discharged from the liquid slurry outlet 19 to enter the next procedure, the unreacted large particle material rolls to the solid material outlet 18 along the sloping plate 23, returns to the box 3 through the solid material outlet 18 for re-reaction

When the waste acid neutralization reactor of the embodiment is used for carrying out waste water neutralization treatment, calcium carbonate is added from the calcium carbonate inlet 15, a large amount of gas is discharged when calcium carbonate reacts with acid, the gas is discharged from the top exhaust ports 20 of the feeding box 3 and the discharging box 4, an external fan can be arranged at the exhaust ports 20, and the fan is used for outputting air to accelerate the discharge of the gas.

In addition, the waste acid neutralization reactor of the embodiment can be applied to mixing different solid materials.

It should be noted that in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The waste acid neutralization reactor is characterized in that: the feeding device comprises a rotary drum, a chassis body, a feeding box and a discharging box, wherein the rotary drum comprises an outer steel supporting cylinder body, the outer steel supporting cylinder body is arranged on the chassis body and is obliquely arranged, the outer steel supporting cylinder body can rotate around the axis of the outer steel supporting cylinder body, an inner cylinder body is arranged in the outer steel supporting cylinder body, the inner cylinder body is fixedly connected with the outer steel supporting cylinder body, and the length of the inner cylinder body is larger than that of the outer steel supporting cylinder body; the two ends of the inner cylinder body are respectively a discharge end and a feed end, the feed box is arranged at the feed end of the inner cylinder body, the discharge box is arranged at the discharge end of the inner cylinder body, and the feed box and the discharge box are respectively in rotary seal with the end part of the inner cylinder body;

2. The spent acid neutralization reactor according to claim 1, characterized in that: the manufacturing materials of the inner cylinder body and the helical blades are PP materials.

3. The spent acid neutralization reactor according to claim 1, characterized in that: an air exhaust fan is arranged at the air exhaust port.