Vacuum concentration device for preparing zinc sulfate heptahydrate

Abstract

The utility model discloses a vacuum concentration device for preparing zinc sulfate heptahydrate, which comprises a reaction kettle, a heating jacket is arranged in the reaction kettle, two sides of the heating jacket are respectively connected with a steam input pipe and a steam output pipe, the inner wall of the reaction kettle is fixedly connected with a flow dividing pipe, the flow dividing pipe is of a lantern ring structure, and the bottom of the flow dividing pipe is connected with a spray head. Two groups of nozzles are arranged at the bottom of the shunt pipe, the two groups of nozzles are annularly distributed at equal intervals relative to the bottom of the shunt pipe, one side of the shunt pipe is connected with a first connecting pipe, the first connecting pipe is provided with a first electromagnetic valve and a water pump, and one side of the first connecting pipe is connected with a second connecting pipe; an air pump and a second electromagnetic valve are arranged on the second connecting pipe, and an online densimeter and a temperature sensor are arranged on one side of the reaction kettle. According to the device, the cleaning difficulty of the inner wall of the reaction kettle can be reduced, and meanwhile, the concentration of zinc sulfate heptahydrate can be monitored, so that the concentration quality of zinc sulfate heptahydrate is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum concentration device technical field, concretely is a kind of vacuum concentration device of zinc sulfate heptahydrate preparation. BACKGROUND

[0002] Zinc sulfate heptahydrate is often used as additive in chemical industry, and it is an inorganic compound, usually in white or colorless crystalline form. It contains one zinc sulfate molecule and seven water molecules, so it is called "seven water" zinc sulfate.

[0003] During the preparation of zinc sulfate heptahydrate, vacuum concentration treatment is required. Because the flowability of zinc sulfate heptahydrate after concentration is poor, it is difficult to clean the vacuum equipment. At the same time, the concentration of zinc sulfate heptahydrate during concentration is not easy to monitor, so it is easy to affect the concentration quality of zinc sulfate heptahydrate, which needs to be improved. INVENTION CONTENTS

[0004] The utility model aims at providing a kind of vacuum concentration device of zinc sulfate heptahydrate preparation to solve the problem of poor flowability of zinc sulfate heptahydrate after concentration as described in the background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of vacuum concentration device of zinc sulfate heptahydrate preparation, including reaction kettle, heating jacket clamp is arranged in the inside of reaction kettle, the two sides of heating jacket clamp are connected with steam input pipe and steam output pipe respectively, the inner wall of reaction kettle is fixedly connected with shunt pipe, shunt pipe is in the form of sleeve ring, shunt pipe bottom is connected with spray head, one side of shunt pipe is connected with first connecting pipe, first connecting pipe is provided with first electromagnetic valve and water pump, one side of first connecting pipe is connected with second connecting pipe, second connecting pipe is provided with air pump and second electromagnetic valve, one side of reaction kettle is provided with on-line densimeter and temperature sensor.

[0006] Preferably, the spray head is provided with two groups about the bottom of the shunt pipe, and the two groups of spray heads are evenly distributed in the form of a ring about the bottom of the shunt pipe.

[0007] Preferably, the spray head at the outer ring of the shunt pipe is in an inclined structure, and the spray head is threadedly connected with the shunt pipe.

[0008] Preferably, the bottom of the reaction kettle is provided with a discharge pipe, and the discharge pipe is provided with a discharge valve. One side of the reaction kettle is connected with an exhaust pipe, and the exhaust pipe is provided with a vacuum pump.

[0009] Preferably, the top of the reaction kettle is fixedly connected with a cover, and the top of the cover is provided with a motor.

[0010] Preferably, the bottom of the cover is rotatably connected with a stirrer, and the top of the stirrer is connected with the shaft of the motor.

[0011] Preferably, the cover is provided with a feeding pipe and a pressure gauge, and the feeding pipe and the pressure gauge are respectively located on two sides of the motor.

[0012] Compared with the prior art, the vacuum concentration device for preparing zinc sulfate heptahydrate has the following beneficial effects:

[0013] (1) The device can reduce the cleaning difficulty of the inner wall of the reaction kettle and monitor the concentration of zinc sulfate heptahydrate, thereby ensuring the concentration quality of the zinc sulfate heptahydrate.

[0014] (2) The device is provided with a shunt pipe on the top of the inner wall of the reaction kettle, one side of the shunt pipe is connected with a second connecting pipe and a first connecting pipe, and the second connecting pipe and the first connecting pipe are respectively connected with an air pump and a water pump, so that the inner wall of the reaction kettle can be sprayed and cleaned by using gas or water, the cleaning efficiency of the reaction kettle is improved, and the cleaning difficulty of the reaction kettle is reduced.

[0015] (3) The device is provided with a temperature sensor, a pressure gauge and an online densimeter, so that the pressure, temperature and concentration of the zinc sulfate heptahydrate concentration work can be detected, thereby ensuring the concentration quality of the zinc sulfate heptahydrate. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structure schematic view of the vacuum concentration device for preparing zinc sulfate heptahydrate.

[0017] Figure 2 It is a structure schematic view of the vacuum concentration device for preparing zinc sulfate heptahydrate. Figure 1 It is an enlarged view of A in the figure.

[0018] Figure 3 It is a top view of the shunt pipe of the vacuum concentration device for preparing zinc sulfate heptahydrate.

[0019] In the figure: 1, feeding pipe; 2, reaction kettle; 3, heating jacket clamp; 4, steam input pipe; 5, motor; 6, pressure gauge; 7, cover; 8, shunt pipe; 9, steam output pipe; 10, temperature sensor; 11, stirrer; 12, online densimeter; 13, discharge pipe; 14, discharge valve; 15, first connecting pipe; 16, first electromagnetic valve; 17, water pump; 18, air pump; 19, second electromagnetic valve; 20, second connecting pipe; 21, spray head. DETAILED DESCRIPTION

[0020] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0021] Please refer to Figures 1-3 The utility model provides a technical scheme: a kind of vacuum concentration device of zinc sulfate heptahydrate preparation, including reaction kettle 2, heating jacket clamp 3 is provided in reaction kettle 2 inside, reaction kettle 2 bottom is provided with discharge pipe 13, discharge pipe 13 is provided with discharge valve 14, reaction kettle 2 side is connected with exhaust pipe, exhaust pipe is provided with vacuum pump attached drawing (not marked), this structure can realize the rapid vacuum of reaction kettle 2, satisfy the demand of vacuum concentration, reaction kettle 2 top is fixedly connected with cover body 7, motor 5 is installed on cover body 7 top, this structure motor 5 shell is fixedly connected with cover body 7 by bolt, cover body 7 bottom is rotatably connected with stirrer 11, the axle of stirrer 11 top and motor 5 is connected, this structure can drive stirrer 11 automatic rotation by motor 5, so that stirrer 11 is stirred to raw material, accelerates concentration, cover body 7 is provided with feed pipe 1 and pressure gauge 6, feed pipe 1 and pressure gauge 6 are located at the two sides of motor 5 respectively, the pressure gauge 6 of this structure is used to detect the pressure inside reaction kettle 2, improve the security of use, heating jacket clamp 3 two sides are connected with steam input pipe 4 and steam output pipe 9 respectively, this structure can guarantee the heating demand in concentration process, the inner wall of reaction kettle 2 is fixedly connected with shunt pipe 8, airflow and water flow can be evenly distributed by shunt pipe 8, shunt pipe 8 is in the form of sleeve ring, shunt pipe 8 bottom is connected with spray head 21, spray head 21 is provided with two groups about shunt pipe 8 bottom, two groups of spray head 21 are about shunt pipe 8 bottom and are circularly distributed at equal intervals, shunt pipe 8 outer ring spray head 21 is in the form of inclination, spray head 21 is screw connected with shunt pipe 8, the outer ring spray head 21 of this structure can concentrate on the cleaning of the inner wall of reaction kettle 2, spray head 21 can be disassembled and replaced, improve the convenience of maintenance, one side of shunt pipe 8 is connected with first connecting pipe 15, first connecting pipe 15 is provided with first electromagnetic valve 16 and water pump 17, one side of first connecting pipe 15 is connected with second connecting pipe 20, second connecting pipe 20 is provided with air pump 18 and second electromagnetic valve 19, reaction kettle 2 side is provided with on-line densimeter 12 and temperature sensor 10, on-line densimeter 12 realizes on-line monitoring by data acquisition and control equipment, temperature sensor 10 realizes control by data acquisition and control equipment, the first electromagnetic valve 16, water pump 17, air pump 18 and second electromagnetic valve 19 of the device are all controlled by PLC, on-line densimeter 12 and temperature sensor 10 are prior art, do not make too much repetition again.

[0022] Working principle: in the use of the seven water zinc sulfate preparation vacuum concentration device, first raw materials through the feed pipe 1 into the reaction kettle 2 inside, through the steam heating, heating process motor 5 driven agitator 11 on the raw materials for mixing and stirring, at the same time, the reaction kettle 2 carries on the work of vacuumizing, in the process of concentration pressure gauge 6 in time carries on the pressure monitoring, on-line densitometer 12 and temperature sensor 10 then on the concentration and temperature of raw materials detection, to improve the concentration efficiency and quality, complete the concentration after the material from the discharge pipe 13 place, then gas or liquid from the first connecting pipe 15 into the shunt pipe 8 inside, make gas or liquid through the nozzle 21 on the reaction kettle 2 inside uniform spraying cleaning, thus improve the cleaning efficiency of the reaction kettle 2, reduce the cleaning difficulty of the reaction kettle 2.

[0023] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A vacuum concentration device for preparing zinc sulfate heptahydrate, comprising a reaction kettle (2), a heating jacket clamp (3) is arranged in the reaction kettle (2), a steam input pipe (4) and a steam output pipe (9) are connected to the two sides of the heating jacket clamp (3) respectively, characterized in that: The inner wall of the reaction kettle (2) is fixedly connected with a shunt pipe (8), the shunt pipe (8) is in a sleeve ring structure, the bottom of the shunt pipe (8) is connected with a spray head (21), one side of the shunt pipe (8) is connected with a first connecting pipe (15), the first connecting pipe (15) is provided with a first electromagnetic valve (16) and a water pump (17), one side of the first connecting pipe (15) is connected with a second connecting pipe (20), the second connecting pipe (20) is provided with a gas pump (18) and a second electromagnetic valve (19), one side of the reaction kettle (2) is provided with an online densimeter (12) and a temperature sensor (10).

2. A vacuum concentration apparatus for the preparation of zinc sulfate heptahydrate according to claim 1, characterized in that: The spray head (21) is provided with two groups in relation to the bottom of the shunt pipe (8), and the two groups of spray heads (21) are circularly and equally spaced in relation to the bottom of the shunt pipe (8).

3. A vacuum concentration apparatus for the preparation of zinc sulfate heptahydrate according to claim 1, characterized in that: The outer ring spray head (21) of the shunt pipe (8) is in an inclined structure, and the spray head (21) is threadedly connected with the shunt pipe (8).

4. A vacuum concentration apparatus for the preparation of zinc sulfate heptahydrate according to claim 1, characterized in that: The bottom of the reaction kettle (2) is provided with a discharge pipe (13), the discharge pipe (13) is provided with a discharge valve (14), one side of the reaction kettle (2) is connected with an exhaust pipe, and the exhaust pipe is provided with a vacuum pump.

5. A vacuum concentration apparatus for the preparation of zinc sulfate heptahydrate according to claim 1, characterized in that: The top of the reaction kettle (2) is fixedly connected with a cover body (7), and the top of the cover body (7) is mounted with a motor (5).

6. A vacuum concentration apparatus for the preparation of zinc sulfate heptahydrate according to claim 5, characterized in that: The bottom of the cover body (7) is rotatably connected with a stirrer (11), and the top of the stirrer (11) is connected with the shaft of the motor (5).

7. A vacuum concentration apparatus for the preparation of zinc sulfate heptahydrate according to claim 5, characterized in that: The cover body (7) is provided with a feed pipe (1) and a pressure gauge (6), and the feed pipe (1) and the pressure gauge (6) are respectively located on the two sides of the motor (5).

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