CN112076494A

CN112076494A - Evaporation crystallization device for preparing zinc sulfate crystals

Info

Publication number: CN112076494A
Application number: CN202010926280.4A
Authority: CN
Inventors: 王运辉; 黄云清; 刘咨民; 周生; 刘佑国
Original assignee: Hengyang Best Selling Chemical Industry Co ltd
Current assignee: Hengyang Best Selling Chemical Industry Co ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2020-12-15

Abstract

An evaporative crystallization device for preparing zinc sulfate crystals; including crystallization device and edulcoration device, inside is provided with liquid suction pipe, drawing liquid mouth, notes liquid mouth, drawing liquid pump, be equipped with the liquid suction pipe on the edulcoration room, drawing liquid pipe fixed connection drawing liquid mouth, annotate the liquid pipe, still be provided with the drawing liquid pump on it, drawing liquid pump fixed connection the connecting pipe, annotate the liquid mouth and pour into the vapor-washing liquid into, carry out edulcoration processing to steam, the vapor-washing liquid passes through the valve, contacts with the filter screen, filters unnecessary impurity, through drawing liquid pipe, drawing liquid mouth, annotate liquid mouth, drawing liquid pump, retrieves the vapor-washing liquid that filters the completion, avoids the wasting of resources, reduces the production cost, and inside is provided with connecting pipe, annotates the liquid pipe, the connecting pipe communicates with in the crystallization jar edulcoration room, steam enters into the inside of edulcoration room through the connecting pipe, annotates liquid mouth and pours vapor-washing liquid into, carries, avoid the discharge of vapor containing impurities and pollute the environment.

Description

Evaporation crystallization device for preparing zinc sulfate crystals

Technical Field

The invention belongs to the technical field of zinc sulfate crystal preparation, and particularly relates to an evaporative crystallization device for preparing zinc sulfate crystals.

Background

Zinc sulfate is colorless or white crystal, granule or powder, is a main raw material for manufacturing lithopone and zinc salt, can also be used as a printing and dyeing mordant, a preservative for wood and leather, and is an important auxiliary raw material for producing viscose fibers and vinylon fibers. In addition, zinc sulfate has applications in the electroplating and electrolysis industries, and can also be used in the manufacture of cables.

The existing evaporative crystallization device for preparing zinc sulfate crystals still has the following defects: when the crystallization tank evaporates the liquid, a large amount of vapor containing impurities is generated, and environmental pollution is caused.

Disclosure of Invention

The invention aims to provide an evaporative crystallization device for preparing zinc sulfate crystals, which solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: an evaporative crystallization device for preparing zinc sulfate crystals; including crystallization device and edulcoration device, its characterized in that: the crystallizing device comprises a crystallizing tank 1, a feeding pipe 7, a discharging port 12, a stirring motor 2, a rotary stirrer 8 and a heating block 9, the feeding pipe 7 is positioned at the upper part of the crystallizing tank 1, the discharge hole 12 is positioned at the middle point of the bottom of the crystallizing tank 1, the stirring motor 2 is fixedly arranged at the middle point of the upper part of the crystallizing tank 1, the rotary stirrer 8 is embedded in the crystallizing tank 1, which is fixedly connected with the stirring motor 2, the heating block 9 is arranged on the inner wall of the crystallization tank 1, the impurity removing device comprises an impurity removing chamber 17, a liquid injection pipe 4, an exhaust pipe 5, a liquid pumping port 14, a partition plate 15 and a valve 16, the liquid injection pipe 4 and the exhaust pipe 5 are both positioned at the right side of the upper part of the impurity removing chamber 17, the liquid pumping port 14 is positioned at the right side of the bottom of the impurity removing chamber 17, the partition plates 15 are fixedly arranged on two sides of the inner wall of the impurity removing chamber 17, and the valves 16 are arranged on the partition plates.

On the basis of the scheme, the material guide pier 11 is arranged in the crystallizing tank 1.

On the basis of the scheme, a connecting pipe 3 is arranged on the crystallizing tank 1, and the connecting pipe 3 is fixedly connected with the crystallizing tank 1 and the impurity removing chamber 17.

On the basis of the scheme, a filter screen 18 is arranged in the impurity removing chamber 17, and the filter screen 18 is fixedly arranged on two sides of the inner wall of the bottom of the impurity removing chamber 17 and is positioned below the partition board 15.

On the basis of the above scheme, the impurity removing chamber 17 is provided with a liquid pumping pipe 6, the liquid pumping pipe 6 is fixedly connected with the liquid pumping port 14 and the liquid injection pipe 4, and a liquid pumping pump 13 is further arranged on the liquid pumping pipe 6, and the liquid pumping pump 13 is fixedly connected with the connecting pipe 3.

In summary, due to the adoption of the technical scheme, the invention has the technical effects and advantages that:

1. according to the invention, a liquid extracting pipe, a liquid extracting port, a liquid injecting port and a liquid extracting pump are arranged in the device, the liquid extracting pipe is arranged on the impurity removing chamber and is fixedly connected with the liquid extracting port and the liquid injecting pipe, the liquid extracting pump is also arranged on the device and is fixedly connected with the connecting pipe, the liquid injecting port injects washing vapor, impurity removing treatment is carried out on the vapor, the washing vapor contacts with a filter screen through a valve to filter redundant impurities, and the filtered washing vapor is recycled through the liquid extracting pipe, the liquid extracting port, the liquid injecting port and the liquid extracting pump, so that resource waste is avoided, and the production cost is reduced.

2. In the invention, a connecting pipe and a liquid injection pipe are arranged in the crystallization tank, the connecting pipe is communicated with the impurity removal chamber, steam enters the impurity removal chamber through the connecting pipe, steam washing liquid is injected into a liquid injection port to remove impurities from the steam, the steam is discharged through an exhaust pipe after the impurities are removed, and the phenomenon that the steam containing impurities is discharged to pollute the environment is avoided.

3. This evaporation crystallization device is used in zinc sulfate crystal preparation, through having set up guide mound and discharge gate, zinc sulfate solution in the crystallizer can deposit near the discharge gate under the guide mound effect, can pile up around the discharge gate after zinc sulfate crystal is appeared, the zinc sulfate crystal of being convenient for discharge.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

in the figure: 1-a crystallization tank; 2-a stirring motor; 3-connecting pipe; 4-liquid injection pipe; 5-an exhaust pipe; 6-liquid pumping pipe; 7-a feed pipe; 8-a rotary stirrer; 9-heating block; 11-a material guide pier; 12-a discharge hole; 13-a liquid pump; 14-a liquid suction port; 15-a separator; 16-a valve; 17-an impurity removal chamber; 18-a filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides an evaporative crystallization device for preparing zinc sulfate crystals, which is shown in figure 1; including crystallization device and edulcoration device, crystallization device includes crystallizer 1, inlet pipe 7, discharge gate 12, agitator motor 2, rotary agitator 8, heating piece 9, guide mound 11, connecting pipe 3, inlet pipe 7 be located 1 upper portion left side of crystallizer, discharge gate 12 is located 1 bottom mid point of crystallizer, 2 fixed mounting of agitator motor in 1 upper portion mid point of crystallizer, 8 embedding of rotary agitator 1 is inside, its with 2 fixed connection of agitator motor, heating piece 9 install in 1 inner wall of crystallizer, be provided with in crystallizer 1 guide mound 11, guide mound 11 is located 1 bottom of crystallizer, its top is close to 1 inner wall of crystallizer, the bottom is gathered together to the center from the inner wall and is formed the material face of leading of slope. Through having set up guide mound 11 and discharge gate 12, zinc sulfate solution in crystallizer 1 can deposit near discharge gate 12 under the guide mound 11 effect, can pile up around discharge gate 12 when zinc sulfate crystal is appeared, the zinc sulfate crystal of being convenient for discharge, be equipped with connecting pipe 3 on crystallizer 1, connecting pipe 3 fixed connection crystallizer 1 edulcoration room 17.

Edulcoration device is including edulcoration room 17, annotate liquid pipe 4, blast pipe 5, drawing liquid mouth 14, baffle 15, valve 16, notes liquid pipe 4, blast pipe 5 all be located edulcoration room 17 upper portion through setting up connecting pipe 3, annotating liquid pipe 4, connecting pipe 3 communicate with each other in crystallizer 1 edulcoration room 17, steam enter into the inside of edulcoration room 17 through connecting pipe 3, annotate liquid pipe 4 and pour into and wash vapour liquid, carry out the edulcoration processing to steam, the edulcoration is accomplished and is discharged through blast pipe 5, avoids the steam discharge that contains impurity, the polluted environment.

The liquid drawing port 14 is located on the right side of the bottom of the impurity removing chamber 17, the partition plate 15 is fixedly installed on two sides of the inner wall of the impurity removing chamber 17, the valve 16 is arranged on the partition plate, a filter screen 18 is arranged in the impurity removing chamber 17, and the filter screen 18 is fixedly installed on two sides of the inner wall of the bottom of the impurity removing chamber 17 and located below the partition plate 15. Be equipped with liquid suction pipe 6 on the edulcoration room 17, liquid suction pipe 6 fixed connection liquid suction mouth 14 annotate liquid pipe 4, still be provided with drawing liquid pump 13 on it, drawing liquid pump 13 fixed connection connecting pipe 3 annotates liquid pipe 4 and pours into and washes vapour liquid, carries out the edulcoration to steam and handles, washes vapour liquid through valve 16, contacts with filter screen 18, filters unnecessary impurity, through liquid suction pipe 6, liquid suction mouth 14, annotates liquid pipe 4, liquid suction pump 13, retrieves the washing vapour liquid that will filter the completion, avoids the wasting of resources, reduces the old cost of production.

The steam washing liquid can be steam washing water, and a medicament for changing the pH value can also be added into the steam washing water according to the requirement.

The working principle is as follows: when in use, the power supply is connected, the feeding pipe 7 is opened, after the zinc sulfate solution is poured into the crystallizing tank 1, the feeding pipe 7 can be closed, the heating block 9 can be electrified to generate heat, so that the zinc sulfate solution in the crystallizing tank 1 can be heated, meanwhile, the stirring motor 2 can drive the rotary stirrer 8 to rotate, the zinc sulfate solution in the crystallizing tank 1 can be stirred, the liquid in the zinc sulfate solution can generate high-temperature steam under the heating effect, the steam can enter the impurity removing chamber 17 through the connecting pipe 3 under the air pressure effect, the steam is injected into the steam injection pipe 4 to remove impurities from the steam, the impurities are removed through the exhaust pipe 5, the zinc sulfate solution can be crystallized along with the continuous evaporation of the liquid, the crystal can be obtained near the discharge port 12 through the guide pier 11, and the zinc sulfate crystal can be conveniently discharged, the zinc sulphate crystals are discharged through a discharge port 12.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. An evaporative crystallization device for preparing zinc sulfate crystals; including crystallization device and edulcoration device, its characterized in that: the crystallization device comprises a crystallization tank, a feed inlet, a discharge outlet, an agitator motor, a rotary agitator and a heating block, wherein the feed inlet is positioned on the upper part of the crystallization tank, the discharge outlet is positioned on the midpoint of the bottom of the crystallization tank, the agitator motor is fixedly arranged on the midpoint of the upper part of the crystallization tank, the rotary agitator is embedded in the crystallization tank, the inner part of the crystallization tank is fixedly connected with the agitator motor, the heating block is arranged on the inner wall of the crystallization tank, the impurity removal device comprises an impurity removal chamber, a liquid injection port, a gas exhaust port, a liquid extraction port, a partition plate and a valve, the liquid injection port and the gas exhaust port are both positioned on one side of the impurity removal chamber, the liquid extraction port is positioned on the bottom of the impurity removal chamber, the partition plate is fixedly arranged on two sides of the inner wall of the impurity removal chamber and is provided, The liquid injection pipe is further provided with a liquid pump, the liquid pump is fixedly connected with the connecting pipe, a filter screen is arranged in the impurity removing chamber, and the filter screen is fixedly installed on two sides of the inner wall of the bottom of the impurity removing chamber and located below the partition plate.

2. The evaporative crystallization device for preparing zinc sulfate crystals according to claim 1, characterized in that: the material guide pier is arranged in the crystallizing tank, the top of the material guide pier is close to the inner wall of the crystallizing tank, and the bottom of the material guide pier gathers from the inner wall to the center to form an inclined material guide surface.

3. The evaporative crystallization device for preparing zinc sulfate crystals according to claim 1, characterized in that: the crystallizer is characterized in that a connecting pipe is arranged on the crystallizing tank and fixedly connected with the crystallizing tank and the impurity removing chamber.