Small-scale test equipment for synthesizing PVC (Polyvinyl Chloride) lubricant

Abstract

The utility model discloses small-scale test equipment for synthesizing a PVC (Polyvinyl Chloride) lubricant, which comprises a spherical glass spherical tank, the lower half part of the glass spherical tank is placed in a heater, the top of the glass spherical tank is vertically provided with a central through pipe and side through pipes arranged around the central through pipe, and the side through pipes are used for introducing nitrogen into the glass spherical tank; a stirring motor is arranged right above the central through pipe, a stirrer is mounted at the lower end of a rotating shaft of the stirring motor, and the stirrer extends into the glass spherical tank from the central through pipe. According to the utility model, various raw materials can be conveniently and quantitatively added into the glass spherical tank according to requirements, and the raw materials are fully mixed by stirring, so that production conditions are accurately simulated in advance for testing before production.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of for the small test equipment of PVC lubricant synthesis, belong to PVC lubricant synthesis small test equipment technical field. BACKGROUND

[0002] In recent years, with the development of China and global economy, PVC product industry scale is expanding, and output is increasing year by year. But because of the inherent molecular structure characteristics of PVC product (polyvinyl chloride), there are great defects in its chemical properties when directly used as raw material to produce plastic products by extrusion, especially poor light and heat stability. Without heating stabilizer, polyvinyl chloride begins to decompose at 100℃, releases toxic hydrogen chloride gas, discolors, and also undergoes photo-oxidative decomposition in ultraviolet light and oxygen, which reduces flexibility and makes it brittle. Therefore, PVC products need to add PVC lubricant in the production process.

[0003] At present, PVC lubricant mainly uses polyhydric alcohol, stearic acid, adipic acid and other materials as main raw materials to obtain external lubricant through esterification. The content of various raw materials is often pre-mixed according to specific needs. There is a lack of equipment for mixing and testing the raw materials of PVC lubricant in the prior art.

[0004] In summary, the prior art has obvious inconvenience and defects in actual use, so it needs to be improved. CONTENT OF THE UTILITY MODEL

[0005] The utility model provides a kind of for the small test equipment of PVC lubricant synthesis according to the deficiency in the background art, can be quantitatively added to glass ball tank with various raw materials according to demand, and carry out stirring to make raw materials fully mixed, to simulate production conditions accurately before production and carry out test.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A kind of for the small test equipment of PVC lubricant synthesis, including spherical glass ball tank, the lower half of glass ball tank is placed in heater, the top of glass ball tank is vertically provided with center pipe and side pipe arranged around center pipe, side pipe is used to introduce nitrogen into glass ball tank;

[0008] The center of the top of center pipe is provided with stirring motor, the lower end of stirring motor rotating shaft is installed with stirrer, and the stirrer extends into glass ball tank from center pipe.

[0009] Further, three side pipes are uniformly arranged around the center pipe, nitrogen is introduced into glass ball tank through trachea in the first side pipe, temperature difference thermocouple is arranged in the second side pipe, and the third side pipe is used for quantitatively adding various raw materials.

[0010] Further, a vertical rod is vertically arranged on one side of the glass ball tank, a base is arranged at the lower end of the vertical rod, and a horizontal rod is fixed to the upper end of the vertical rod through a connecting piece, and the horizontal rod is fixedly connected with the stirring motor.

[0011] Further, a connecting piece is arranged at the middle position of the vertical rod, and a horizontal rod is transversely fixed to the connecting piece, and a clamp is arranged at the end of the horizontal rod, and the clamp clamps the central pipe.

[0012] Further, the stirrer comprises stirring rods, and the stirring rods are uniformly arranged around the lower end of the stirring shaft.

[0013] Further, an end plate is arranged at the end of the rotating shaft, the stirring rods are hingedly connected to the edge of the end plate, a sleeve is sleeved outside the rotating shaft, a plurality of push-pull rods are arranged at the lower end of the sleeve, the push-pull rods are arranged in one-to-one correspondence with the stirring rods, the push-pull rods are hung on the stirring rods, the other ends are hung on the lower end of the sleeve, and the push-pull sleeve controls the stirring rods to be spread or folded.

[0014] Further, a locking screw is threadedly installed at the upper end of the sleeve.

[0015] Compared with the prior art, the above technical scheme has the following advantages:

[0016] The lower half of the glass ball tank is placed in the heater, a central pipe is vertically arranged at the top of the glass ball tank, three side pipes are uniformly arranged around the central pipe, nitrogen is introduced into the glass ball tank through the gas pipe in the first side pipe to avoid oxidation of raw materials, a temperature difference thermocouple is arranged in the second side pipe to detect the temperature in the glass ball tank in real time, and the third side pipe is used for quantitative addition of various raw materials, so that the production conditions are accurately simulated before production for testing.

[0017] The utility model will be described in detail below in combination with the drawings and examples. DRAWINGS

[0018] Figure 1 is the structural schematic diagram of the utility model;

[0019] Figure 2 is the structural schematic diagram of the glass ball tank in the utility model;

[0020] Figure 3 is the structural schematic diagram of the utility model in which the stirring motor and the stirrer are folded together;

[0021] Figure 4 is Figure 3 is the enlarged view of A in the utility model;

[0022] Figure 5 is the structural schematic diagram of the utility model in which the stirring motor and the stirrer are unfolded;

[0023] Figure 6 is Figure 5 enlarged view of B in FIG.

[0024] In the figure, 1-heater, 2-glass ball tank, 3-side pipe, 4-center pipe, 5-plastic plug, 6-thermocouple, 7-gas pipe, 8-vertical rod, 9-base, 10-stirring motor, 11-connector, 12-rotating shaft, 13-clamp, 14-sleeve, 1401-locking screw, 15-end plate, 16-stirring rod, 17-pushing and pulling rod. DETAILED DESCRIPTION

[0025] In order to have a more clear understanding of the technical features, objects and effects of the present application, the specific embodiments of the present application will be described with reference to the accompanying drawings.

[0026] As Figure 1 shown, the present application provides a kind of for the small test equipment of PVC lubricant synthesis, including spherical glass ball tank 2, as Figure 2 The lower half of glass ball tank 2 is placed in heater 1, the top of glass ball tank 2 is vertically provided with center pipe 4 and the side pipe 3 around center pipe 4, and the side pipe 3 is used to introduce nitrogen into glass ball tank 2.

[0027] The upper side of center pipe 4 is provided with stirring motor 10, and the lower end of rotating shaft 12 of stirring motor 10 is provided with stirrer, which extends into glass ball tank 2 from center pipe 4.

[0028] Three side pipes 3 are uniformly arranged around center pipe 4, nitrogen is introduced into glass ball tank 2 through gas pipe 7 in the first side pipe 3 to avoid oxidation of raw materials, thermocouple 6 is arranged in the second side pipe 3 to detect the temperature in glass ball tank 2 in real time, and the third side pipe 3 is used to quantitatively add various raw materials.

[0029] Plastic plug 5 is arranged at the opening of the upper end of the first side pipe 3 and the second side pipe 3 to block the side pipe, and a socket is arranged at the middle position of plastic plug 5, and thermocouple 6 and gas pipe 7 are inserted into the socket.

[0030] A vertical rod 8 is vertically arranged on one side of glass ball tank 2, a base 9 is arranged at the lower end of vertical rod 8, and a horizontal rod is fixed to the upper end of vertical rod 8 through connector 11, and the horizontal rod is fixedly connected with stirring motor 10.

[0031] A connector 11 is also arranged at the middle position of vertical rod 8, and a horizontal rod is transversely fixed to the connector 11, and a clamp 13 is arranged at the end of the horizontal rod, and the clamp 13 clamps center pipe 4 to fix glass ball tank 2.

[0032] AsFigures 3-6 The stirrer comprises a stirring rod 16 uniformly arranged around the lower end of the rotating shaft 12, which is used to stir the mixture during the synthesis of the PVC lubricant.

[0033] Further, the end of the rotating shaft 12 is provided with an end plate 15, the stirring rod 16 is hinged to the edge of the end plate 15, the rotating shaft 12 is sleeved with a sleeve 14, the lower end of the sleeve 14 is provided with a plurality of push-pull rods 17, the push-pull rods 17 are arranged one by one corresponding to the stirring rod 16, the push-pull rods 17 are hung on the stirring rod 16, and the other end is hung on the lower end of the sleeve 14, and the push-pull sleeve 14 can control the stirring rod 16 to be expanded or contracted.

[0034] The upper end of the sleeve 14 is screwed with a locking screw 1401, and the sleeve 14 is fixed on the rotating shaft 12 through the locking screw 1401 during stirring.

[0035] The specific working principle of the utility model is as follows:

[0036] The lower half of the glass sphere tank 2 is placed in the heater 1, the top of the glass sphere tank 2 is vertically provided with a center through pipe 4, three side through pipes 3 are uniformly arranged around the center through pipe 4, nitrogen is introduced into the glass sphere tank 2 through the gas pipe 7 in the first side through pipe 3, so that the raw materials are prevented from being oxidized, the second side through pipe 3 is provided with a temperature difference thermocouple 6, the temperature in the glass sphere tank 2 is detected in real time, and the third side through pipe 3 is used to quantitatively add various raw materials, so that the production conditions are accurately simulated before production for testing, and the operation is convenient.

[0037] During the small test process, the stirrer is stirred, the sleeve 14 is pushed upwards to make the stirring rod 16 close when the stirrer is put into or taken out, after the stirrer is put into the glass sphere tank 2, the sleeve 14 is pushed downwards to make the stirring rod 16 expand for stirring.

[0038] The above is an example of the best implementation mode of the utility model, wherein the parts not described in detail are the common knowledge of ordinary technical personnel in the art. The protection scope of the utility model is subject to the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. A pilot plant for the synthesis of a PVC lubricant, characterized in that: The application relates to a glass ball tank (2) with a spherical shape, wherein the lower half of the glass ball tank (2) is placed in a heater (1), the top of the glass ball tank (2) is vertically provided with a central pipe (4) and lateral pipes (3) arranged around the central pipe (4), and the lateral pipes (3) are used for feeding nitrogen into the glass ball tank (2). A stirring motor (10) is arranged above the central pipe (4), the lower end of the rotating shaft (12) of the stirring motor (10) is provided with a stirrer, and the stirrer extends into the glass ball tank (2) from the central pipe (4).

2. A pilot plant for the synthesis of a PVC lubricant according to claim 1, characterized in that: Three lateral pipes (3) are uniformly arranged around the central pipe (4), nitrogen is fed into the glass ball tank (2) through a gas pipe (7) in the first lateral pipe (3), a temperature difference thermocouple (6) is arranged in the second lateral pipe (3), and the third lateral pipe (3) is used for quantitatively adding various raw materials.

3. A pilot plant for the synthesis of a PVC lubricant as claimed in claim 1, characterized in that: A vertical rod (8) is vertically arranged on one side of the glass ball tank (2), the lower end of the vertical rod (8) is provided with a base (9), and the upper end of the vertical rod (8) is fixedly connected with a horizontal rod through a connecting piece (11).

4. A pilot plant for the synthesis of a PVC lubricant as claimed in claim 3, characterized in that: A connecting piece (11) is arranged at the middle position of the vertical rod (8), the connecting piece (11) is transversely fixedly connected with a horizontal rod, the end of the horizontal rod is provided with a clamp (13), and the clamp (13) clamps the central pipe (4).

5. A pilot plant for the synthesis of a PVC lubricant according to claim 1, characterized in that: The stirrer comprises a stirring rod (16), and the stirring rods (16) are uniformly arranged at the lower end of the rotating shaft (12).

6. A pilot plant for the synthesis of a PVC lubricant as claimed in claim 5, characterized in that: The end of the rotating shaft (12) is provided with an end plate (15), the stirring rods (16) are hingedly connected to the edge of the end plate (15), a sleeve pipe (14) is sleeved outside the rotating shaft (12), the lower end of the sleeve pipe (14) is provided with a plurality of push-pull rods (17), the push-pull rods (17) are arranged in one-to-one correspondence with the stirring rods (16), the push-pull rods (17) are hung on the stirring rods (16) and the other ends are hung on the lower end of the sleeve pipe (14), and the sleeve pipe (14) is controlled to be expanded or contracted by controlling the push-pull rods (17).

7. A pilot plant for the synthesis of a PVC lubricant as claimed in claim 6, characterized in that: The upper end of the sleeve pipe (14) is screw-connected with a locking screw (1401).

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