Chlorinated polyethylene additive adding device

Abstract

The utility model relates to the technical field of chemical equipment, in particular to a chlorinated polyethylene additive adding device which comprises a batching kettle, a stirrer, an additive feeding unit, a hydrochloric acid feeding unit, a tail gas emptying pipeline, a vacuum unit and an emptying unit. The stirrer is mounted on the batching kettle and is used for stirring substances in the batching kettle; the additive feeding unit and the hydrochloric acid feeding unit are connected with the batching kettle; the vacuum unit is connected with the batching kettle through a negative pumping pipeline; the discharging unit is arranged at the bottom of the batching kettle. According to the chlorinated polyethylene additive adding device, after the batching kettle is vacuumized through the vacuum unit, a chlorinated polyethylene additive is automatically added into the batching kettle under the action of negative pressure, a traditional manual adding mode is replaced, and safety is improved; and the assistant feeding unit has a metering function, so that the chlorinated polyethylene assistant can be accurately added.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, in particular to a chlorinated polyethylene additive adding device. Background Art

[0002] In chemical production, chlorinated polyethylene is an important polymer material, and its production process has extremely high requirements for the accuracy of additive addition. Traditional chlorinated polyethylene additive addition relies on manual operation, which is not only labor-intensive, but also easily affected by human factors, resulting in inaccurate additive addition and affecting product quality. At the same time, the addition of additives often involves contact with some harmful or dangerous chemicals, increasing the safety risks of workers. Utility Model Content

[0003] The utility model provides a chlorinated polyethylene additive adding device to solve the technical problems in the prior art that the addition of chlorinated polyethylene additives relies on manual operation, resulting in inaccurate addition of additives and increased safety risks for workers.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] A chlorinated polyethylene additive adding device, comprising: a batching kettle, a stirrer, an additive adding unit, a hydrochloric acid adding unit, an exhaust gas venting pipeline, a vacuum unit and a discharge unit;

[0006] The stirrer is installed on the batching kettle and is used to stir the materials inside the batching kettle;

[0007] The auxiliary agent feeding unit and the hydrochloric acid feeding unit are connected to the batching kettle;

[0008] The tail gas venting pipeline is connected to the batching kettle;

[0009] The vacuum unit is connected to the batching kettle via a vacuum pipe;

[0010] The discharge unit is arranged at the bottom of the batching kettle.

[0011] Furthermore: the additive feeding unit comprises: a metering bin, a hopper, a first feed pipe and a first valve;

[0012] The metering bin is arranged above the hopper, and the metering bin is connected to the hopper;

[0013] The hopper is arranged above the batching kettle, and the hopper is connected to the batching kettle through the first feeding pipe; the first valve is arranged on the first feeding pipe.

[0014] Further: the hydrochloric acid feeding unit comprises: a second feeding pipe and a second valve;

[0015] One end of the second material delivery pipe is used to connect to a container filled with hydrochloric acid, and the other end of the second material delivery pipe is connected to the batching kettle;

[0016] The second valve is arranged on the second material conveying pipe.

[0017] Further: the discharge unit includes: a third feed pipe and a third valve;

[0018] One end of the first material delivery pipe is connected to the bottom of the batching kettle, and the third valve is arranged on the third material delivery pipe.

[0019] Further: it also includes: an acid supply pipeline; one end of the acid supply pipeline is connected to the batching kettle, and the other end of the acid supply pipeline is connected to the water tank of the vacuum unit;

[0020] A fourth valve is arranged on the acid replenishing pipeline.

[0021] The chlorinated polyethylene additive adding device provided by the utility model has at least the following beneficial effects or advantages:

[0022] The utility model provides a chlorinated polyethylene additive adding device, wherein the stirrer is installed on the batching kettle, and is used to stir the internal material of the batching kettle; the additive adding unit and the hydrochloric acid adding unit are connected to the batching kettle; the vacuum unit is connected to the batching kettle through the tail gas venting pipeline; and the discharge unit is arranged at the bottom of the batching kettle. The chlorinated polyethylene additive adding device can automatically add the chlorinated polyethylene additive to the batching kettle under the action of negative pressure after the batching kettle is evacuated by the vacuum unit, thereby replacing the traditional manual adding method and improving safety; the additive adding unit has a metering function, and can realize accurate addition of the chlorinated polyethylene additive. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of a chlorinated polyethylene additive adding device provided in an embodiment of the utility model.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1-batch kettle, 2-agitator, 3-auxiliary agent feeding unit, 31-metering bin, 32-hopper, 33-first feeding pipe, 34-first valve, 4-hydrochloric acid feeding unit, 41-second feeding pipe, 42-second valve, 5-tail gas venting pipeline, 51-fifth valve, 6-acid supply pipeline, 61-fourth valve, 7-vacuum unit, 8-discharging unit, 81-third feeding pipe, 82-third valve. DETAILED DESCRIPTION

[0026] The utility model provides a chlorinated polyethylene additive adding device to solve the technical problems in the prior art that the addition of chlorinated polyethylene additives relies on manual operation, resulting in inaccurate addition of additives and increased safety risks for workers.

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1 The embodiment of the utility model provides a chlorinated polyethylene additive adding device, including: a batching kettle 1, an agitator 2, an additive adding unit 3, a hydrochloric acid adding unit 4, a tail gas venting pipeline 5, a vacuum unit 7 and a discharge unit 8. Among them, the agitator 2 is installed on the batching kettle 1, and the agitator 2 is driven by a motor to stir the internal material of the batching kettle 1. The additive adding unit 3 and the hydrochloric acid adding unit 4 are connected to the batching kettle 1, and the additive adding unit 3 is used to quantitatively add chlorinated polyethylene additives to the batching kettle 1, and the hydrochloric acid adding unit 4 is used to add hydrochloric acid to the batching kettle 1. The vacuum unit 7 is connected to the batching kettle 1 through a negative extraction pipeline, and the vacuum unit 7 is used to vacuum the batching kettle 1 so that the batching kettle 1 forms a negative pressure environment; the tail gas venting pipeline 5 is connected to the batching kettle 1, and a fifth valve 51 is provided on the tail gas venting pipeline 5. The discharge unit 8 is arranged at the bottom of the batching kettle 1, and is used to transport the polyethylene after the additives are added to other process equipment.

[0029] Specifically, see Figure 1 The additive feeding unit 3 includes: a metering bin 31, a hopper 32, a first delivery pipe 33 and a first valve 34. The metering bin 31 is arranged above the hopper 32, and a metering device is built in the metering bin 31 to measure the outflowing additive; the metering bin 31 is connected to the hopper 32, and the hopper 32 is arranged in a funnel shape that is wide at the top and narrow at the bottom. The hopper 32 is arranged above the batching kettle 1, and the hopper 32 is connected to the batching kettle 1 through the first delivery pipe 33. The additive output from the metering bin 31 enters the hopper 32, and is transported from the hopper 32 to the batching kettle 1 through the first delivery pipe 33; the first valve 34 is arranged on the first delivery pipe 33, and the first valve 34 is used to control the on and off of the first delivery pipe 33.

[0030] In a preferred embodiment of the present utility model, see Figure 1The hydrochloric acid feeding unit 4 includes: a second feeding pipe 41 and a second valve 42. One end of the second feeding pipe 41 is used to connect to a container filled with hydrochloric acid, and the other end of the second feeding pipe 41 is connected to the batching kettle 1, and is used to transport the hydrochloric acid in the container to the batching kettle 1. The second valve 42 is arranged on the second feeding pipe 41, and the second valve 42 adopts a remote control valve, which is used to control the on and off of the second feeding pipe 41.

[0031] In a preferred embodiment of the present utility model, see Figure 1 The material discharge unit 8 includes a third material delivery pipe 81 and a third valve 82. One end of the first material delivery pipe 33 is connected to the bottom of the batching kettle 1, and the third valve 82 is arranged on the third material delivery pipe 81.

[0032] To further improve the automation level of the chlorinated polyethylene additive adding device, see Figure 1 The device is also provided with: an acid supply pipeline 6; one end of the acid supply pipeline 6 is connected to the batching kettle 1, and the other end of the acid supply pipeline 6 is connected to the water tank of the vacuum unit 7, and the acid supply pipeline 6 is used to supply the hydrochloric acid in the water tank of the vacuum unit 7 into the batching kettle 1; a fourth valve 61 is provided on the acid supply pipeline 6, and the fourth valve 61 is used to control the on-off of the acid supply pipeline 6.

[0033] The working process of the chlorinated polyethylene additive adding device provided in the embodiment of the utility model is as follows: Figure 1 , the valve set on the chlorinated polyethylene additive adding device is closed by default. Open the agitator 2 on the batching kettle 1, open the second valve 42 on the hydrochloric acid feeding unit 4, add quantitative hydrochloric acid to the batching kettle 1, and then close the second valve 42 on the hydrochloric acid feeding unit 4. Open the valve and vacuum unit 7 set on the tail gas venting pipeline 5, start to vacuum the batching kettle 1 to -0.05Mpa, and close the valve and vacuum unit 7 set on the tail gas venting pipeline 5. Add the additive to the hopper 32 through the metering bin 31, open the first valve 34 on the additive feeding unit 3, use negative pressure to suck the additive into the batching kettle 1, let it stand for 10 minutes, then open the valve on the tail gas venting pipeline 5, open the bottom valve of the polyethylene metering bin, and add the weighed polyethylene raw material to the batching kettle 1 to mix with the additive.

[0034] The chlorinated polyethylene additive adding device provided by the embodiment of the utility model has at least the following beneficial effects or advantages:

[0035] The chlorinated polyethylene additive adding device provided by the embodiment of the utility model has a stirrer installed on the batching kettle for stirring the internal material of the batching kettle; the additive adding unit and the hydrochloric acid adding unit are connected to the batching kettle; the vacuum unit is connected to the batching kettle through the tail gas venting pipeline; the discharge unit is arranged at the bottom of the batching kettle. The chlorinated polyethylene additive adding device can automatically add the chlorinated polyethylene additive to the batching kettle under the action of negative pressure after the batching kettle is evacuated by the vacuum unit, replacing the traditional manual adding method and improving safety; the additive adding unit has a metering function, which can realize the accurate addition of the chlorinated polyethylene additive.

[0036] In the description of the present utility model, it should be noted that the terminology nouns in the various embodiments, such as words indicating directions such as "upper", "lower", "front", "back", "left", "right", etc., are only for simplifying the description of the positional relationship based on the drawings in the specification, and do not mean that the referred elements and devices must be operated according to the specific directions and specified operations and methods and structures in the specification. Such directional nouns do not constitute limitations on the present utility model.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A chlorinated polyethylene additive adding device, characterized in that: include: Batching kettle, agitator, additive feeding unit, hydrochloric acid feeding unit, tail gas venting pipeline, vacuum unit and discharge unit; The stirrer is installed on the batching kettle and is used to stir the materials inside the batching kettle; The auxiliary agent feeding unit and the hydrochloric acid feeding unit are connected to the batching kettle; The tail gas venting pipeline is connected to the batching kettle; The vacuum unit is connected to the batching kettle via a vacuum pipe; The discharge unit is arranged at the bottom of the batching kettle.

2. The chlorinated polyethylene additive adding device according to claim 1, characterized in that: The additive feeding unit comprises: a metering bin, a hopper, a first feed pipe and a first valve; The metering bin is arranged above the hopper, and the metering bin is connected to the hopper; The hopper is arranged above the batching kettle, and the hopper is connected to the batching kettle through the first feeding pipe; the first valve is arranged on the first feeding pipe.

3. The chlorinated polyethylene additive adding device according to claim 2, characterized in that: The hydrochloric acid feeding unit comprises: a second feeding pipe and a second valve; One end of the second material delivery pipe is used to connect to a container filled with hydrochloric acid, and the other end of the second material delivery pipe is connected to the batching kettle; The second valve is arranged on the second material conveying pipe.

4. The chlorinated polyethylene additive adding device according to claim 3, characterized in that: The material discharge unit comprises: a third material delivery pipe and a third valve; One end of the first material delivery pipe is connected to the bottom of the batching kettle, and the third valve is arranged on the third material delivery pipe.

5. The chlorinated polyethylene additive adding device according to claim 1, characterized in that: Also includes: Acid supply pipeline; one end of the acid supply pipeline is connected to the batching kettle, and the other end of the acid supply pipeline is connected to the water tank of the vacuum unit; A fourth valve is arranged on the acid replenishing pipeline.

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