Safe preparation device for solvent-free two-component polyurethane adhesive

Abstract

The utility model relates to the technical field of adhesive preparation, and discloses a safe preparation device for a solvent-free two-component polyurethane adhesive, which comprises a storage tank, a feeding port arranged on the upper wall of the storage tank, a discharging header pipe arranged on the lower wall of the storage tank, and a master control valve arranged on the discharging header pipe; a plurality of mixing tanks are arranged above the storage tank, stirring mixers are arranged in the mixing tanks, feeding branch pipes and discharging branch pipes are arranged on the upper walls and the lower walls of the mixing tanks respectively, the discharging branch pipes are communicated with the feeding ports of the storage tanks, branch control valves are arranged on the discharging branch pipes, sampling pipes are arranged at the lower ends of the side walls of the mixing tanks, and sampling valves are arranged at the sampling pipes. And a pressure control assembly and a nitrogen charging port are arranged above the mixing tank. The utility model has the advantages that explosion-proof protection measures are taken, and dangerous situations are prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of adhesive preparation technology, and specifically relates to a safe preparation device for solvent-free two-component polyurethane adhesive. BACKGROUND

[0002] The adhesive safe preparation device is a special equipment for producing various adhesives, and focuses on ensuring the safety of the production process. It is composed of multiple key parts, can accurately process raw materials, such as accurately weighing and mixing different components according to the formula. The reaction link is controlled by temperature, pressure and stirring device, so that the adhesive synthesis reaction can be carried out stably. Qualified adhesives are efficiently produced.

[0003] In the current preparation process of solvent-free two-component polyurethane adhesive, one serious problem cannot be ignored. The raw materials involved in the preparation, such as isocyanate, have extremely active chemical properties and are highly sensitive to moisture. Because the existing preparation process often lacks effective reaction protection means, once the raw materials accidentally contact the moisture in the air, a chemical reaction will occur rapidly. This reaction may release heat rapidly, and in a limited space, the heat cannot be dissipated in time, the pressure rises rapidly, and an explosion may occur. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a kind of solvent-free two-component polyurethane adhesive safe preparation devices with explosion-proof protection measures, to prevent dangerous situation from happening, to solve the above various problems.

[0005] To solve the above technical problems, the technical scheme provided by the utility model is as follows: a kind of solvent-free two-component polyurethane adhesive safe preparation device, comprising:

[0006] The storage tank is provided with a feed inlet on the upper wall and a discharge main on the lower wall, and the discharge main is provided with a master control valve;

[0007] The mixing tank is provided with a plurality of mixing tanks above the storage tank, and is provided with a stirring mixer inside, and is provided with a feed branch and a discharge branch on the upper wall and the lower wall respectively, the discharge branch is communicated with the feed inlet of the storage tank, and the discharge branch is provided with a branch control valve, the lower end of the side wall of the mixing tank is provided with a sampling pipe, the sampling valve is arranged at the sampling pipe, and the mixing tank is provided with a pressure control assembly and a nitrogen filling port above.

[0008] Further, the storage tank is provided with a plurality of legs below, and the legs are inclinedly arranged.

[0009] Further, the storage tank is provided with a feed main connected to the feed inlet, and the lower end of the discharge branch is communicated with the feed main.

[0010] Further, the pressure control assembly comprises a pressure controller and a pressure relief valve.

[0011] Further, the storage tank and the mixing tank are both sealed explosion-proof tanks.

[0012] The utility model discloses compared with prior art has the advantages that the pressure controller real -time monitoring the pressure in the mixing tank, once the pressure appears the trend of abnormal rise, and the pressure -relief valve can respond quickly, and timely release the pressure that is too high, make the pressure in the tank keep in the safe range, avoid the explosion caused by the pressure that is too high. The existence of the nitrogen filling port provides inert gas protection for the mixing tank. By filling nitrogen, oxygen in the tank can be discharged, forming a low-oxygen or oxygen-free environment, further reducing the possibility of explosion. The storage tank and the mixing tank are both designed as sealed explosion-proof tanks, eliminating the possibility of material leakage, and also preventing the entry of external impurities, avoiding internal abnormal reactions and explosion risks caused by impurities mixing. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the perspective view of the utility model;

[0014] Figure 2 It is the front view of the utility model;

[0015] Figure 3 It is the top view of the utility model;

[0016] Figure 4 It is the side view of the utility model.

[0017] As shown in the figure: 1, storage tank, 2, discharge main pipe, 3, total control valve, 4, mixing tank, 5, stirring mixer, 6, feed branch pipe, 7, discharge branch pipe, 8, branch control valve, 9, sampling pipe, 10, sampling valve, 11, nitrogen filling port, 12, support leg, 13, feed main pipe, 14, pressure controller, 15, pressure relief valve. DETAILED DESCRIPTION

[0018] The utility model will be further explained in detail in connection with the drawings.

[0019] In connection with the drawings Figure 2 A kind of solvent-free type two-component polyurethane adhesive safety type preparation device, comprising: storage tank 1, upper wall is equipped with feed inlet, lower wall is equipped with discharge main pipe 2, the discharge main pipe 2 is equipped with total control valve 3, the storage tank 1 below is equipped with several support legs 12, the support leg 12 is inclined to set, can make storage tank 1 place more stable.

[0020] In connection with the drawings Figure 1 , attached Figure 2, the mixing tank 4 is provided with a plurality of storage tanks 1, and the inside is provided with a stirring mixer 5, the upper wall and the lower wall are respectively provided with a feeding branch pipe 6 and a discharging branch pipe 7, the discharging branch pipe 7 is communicated with the feeding port of the storage tank 1, and the discharging branch pipe 7 is provided with a branch control valve 8, the feeding port of the storage tank 1 is connected with a feeding main pipe 13, and the lower end of the discharging branch pipe 7 is communicated with the feeding main pipe 13, so that the transmission path of the material is optimized, the mixed material in the mixing tank 4 can be conveniently fed into the storage tank 1, and the transmission efficiency is improved.

[0021] The utility model discloses a mixing tank 4, a plurality of storage tanks 1 are arranged above the mixing tank 4, and the inside is provided with a stirring mixer 5. Figure 1 , the upper wall and the lower wall are respectively provided with a feeding branch pipe 6 and a discharging branch pipe 7, the discharging branch pipe 7 is communicated with the feeding port of the storage tank 1, and the discharging branch pipe 7 is provided with a branch control valve 8, the feeding port of the storage tank 1 is connected with a feeding main pipe 13, and the lower end of the discharging branch pipe 7 is communicated with the feeding main pipe 13, so that the transmission path of the material is optimized, the mixed material in the mixing tank 4 can be conveniently fed into the storage tank 1, and the transmission efficiency is improved. Figure 3 Figure 4 The lower end of the side wall of the mixing tank 4 is provided with a sampling pipe 9, the sampling pipe 9 is provided with a sampling valve 10, and the upper side of the mixing tank 4 is provided with a pressure control assembly and a nitrogen filling port 11.

[0022] The storage tank 1 and the mixing tank 4 are all sealed anti-explosion tanks, can prevent material leakage and foreign matter from entering the outside, avoid explosion danger caused by internal reaction, and greatly enhance the safety and reliability of the equipment.

[0023] The specific implementation manner of the utility model is as follows: connecting the device with an external power supply, feeding the material into each mixing tank 4 through the feeding branch pipe 6 of the upper wall of the mixing tank 4 according to the same proportion.

[0024] After mixing, the material in the mixing tank 4 can be sampled and detected, and the sampling valve 10 at the sampling pipe 9 can be opened for sampling.

[0025] When discharging is needed, the total control valve 3 is opened, and the material flows out through the discharging main pipe 2.

[0026] ​In the description of the utility model, it needs to explain, unless another explicit stipulation and limit, the term "connection" should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connect, for the ordinary skill of the person of the art, can understand the concrete meaning of the above terms in the utility model according to the specific situation.

[0027] The utility model and its implementation mode have been described above, and this description is not restrictive, and the embodiment shown in the drawings is only one of the utility model, and the actual structure is not limited thereto. In general, if the ordinary skilled person in the art is inspired, without departing from the utility model creation purpose, without creative design, similar structure mode and embodiment to the technical scheme, all should belong to the protection scope of the utility model.

Claims

1. A safe preparation apparatus for a solvent-free two-component polyurethane adhesive, characterized in that, include: Storage tank (1) has a feed inlet on the upper wall and a discharge manifold (2) on the lower wall. The discharge manifold (2) is equipped with a main control valve (3). Mixing tank (4) is provided above storage tank (1) with multiple mixing units. Inside, there is a stirring mixer (5). The upper and lower walls are respectively provided with feed pipe (6) and discharge pipe (7). The discharge pipe (7) is connected to the feed inlet of storage tank (1) and is provided with a control valve (8). The lower end of the side wall of mixing tank (4) is provided with sampling pipe (9) and sampling valve (10) is provided at sampling pipe (9). The mixing tank (4) is provided with pressure control components and nitrogen filling port (11) above.

2. The safe preparation apparatus for a solvent-free two-component polyurethane adhesive according to claim 1, characterized in that: The storage tank (1) is provided with several legs (12) below it, and the legs (12) are inclined.

3. The solvent-free two-component polyurethane adhesive safe preparation apparatus according to claim 1, characterized in that: The storage tank (1) is connected to the feed inlet with a feed main pipe (13), and the lower end of the discharge branch pipe (7) is connected to the feed main pipe (13).

4. The safe preparation apparatus for a solvent-free two-component polyurethane adhesive according to claim 1, characterized in that: The pressure control assembly includes a pressure controller (14) and a pressure relief valve (15).

5. The safe preparation apparatus for a solvent-free two-component polyurethane adhesive according to claim 1, characterized in that: Both the storage tank (1) and the mixing tank (4) are sealed explosion-proof tanks.

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