CN202400851U - Silicon material soaking machine - Google Patents

Abstract

The utility model discloses a silicon material soaking machine, which comprises a frame, an acid circulation and recovery system, a soaking tank and an exhaust device; the soaking tank is fixed on the frame; the upper end of the soaking tank is provided with a tank cover; The cover of the tank is watertightly connected with the soaking tank; the upper end of the side wall of the soaking tank is equipped with an exhaust device; the inside of the soaking tank is provided with a heating device; the acid circulation and recovery system is connected to the bottom of the soaking tank through pipelines. The acid circulation and recovery system can avoid the leakage of acid mist and ensure that the working environment meets the requirements of ISO14001 and OHSMS18001; the heating device can meet the requirements of the reaction temperature in the silicon material cleaning process, and the constant temperature heating method is adopted to avoid the influence of natural temperature; the acid solution is reasonable Recycling reduces processing costs.

Description

Silicon soaking machine

technical field

The utility model relates to a silicon material soaking machine, which belongs to the technical field of silicon material soaking.

Background technique

Existing solar photovoltaic silicon materials are randomly found in corrosion-resistant containers as immersion tools, and the immersion cycle is affected by changes in natural environment temperature. The acid used after a immersion cycle is directly recovered as waste acid and cannot be reused; during the immersion process, the silicon raw material reacts with the acid to produce a lot of acid mist, because there is no airtight ventilation, which leads to leakage, and the immersion area has a strong sour smell. Normal operation will cause hazards to the personal safety of operators; and it will cause corrosion to the walls of the soaking area; a soaking cycle needs to be rinsed with pure water after the end, which will cause a large amount of diluted acid to flow into the sewer, causing the sewage discharge to exceed standard. The immersion environment is affected by the change of natural environment temperature and the processing cycle.

Utility model content

Purpose of the utility model: Aiming at the problems and deficiencies in the prior art, the utility model provides a silicon material soaking machine which uses a closed environment to soak the silicon material and adopts an exhaust system to ensure that the working environment meets the requirements of ISO14001 and OHSMS18001 and reduces processing costs. .

Technical solution: a silicon material soaking machine, including a frame, an acid circulation and recovery system, a soaking tank and an exhaust device; the soaking tank is fixed on the frame; the upper end of the soaking tank is provided with a tank cover; the The tank cover is water-tightly connected with the soaking tank; the upper end of the side wall of the soaking tank is equipped with an exhaust device; the inside of the soaking tank is provided with a heating device; the acid circulation and recovery system is connected to the bottom of the soaking tank through a pipeline.

The acid circulation and recovery system is a pneumatic diaphragm pump.

The frame is fixed by a stainless steel square tube.

Working principle: According to the requirements of the process conditions, the heating device inside the immersion tank is continuously heated to a constant temperature to ensure that the silicon material will not be affected by natural conditions. The tank is covered with a water-tight tank cover, and the heating device is turned on to make it react according to the requirements of the process conditions.

Beneficial effects: Compared with the prior art, the silicon material immersion machine provided by the utility model has the following advantages: the acid liquid circulation and recovery system can avoid acid mist leakage, and ensure that the working environment meets the requirements of ISO14001 and OHSMS18001; the heating device can It meets the requirements of the reaction temperature in the silicon material cleaning process, and adopts a constant temperature heating method to avoid the influence of natural temperature; reasonable recycling of acid can reduce processing costs.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of the utility model.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, further illustrate the utility model.

As shown in Figure 1, soaking tank 3 is fixed on the frame 1 that stainless steel square tube is fixed; The upper end of soaking tank 3 is provided with tank cover 5; The upper end of the side wall of 3 is equipped with an exhaust device 4 made of PP material; the inside of the soaking tank 3 is equipped with a heating device with a heating power of 9KW*1; the acid circulation and recovery system 2 passes through the pipeline and the soaking tank 3 Bottom connection.

The size of the soaking tank 3 is 720*500*430mm, the inner tank is made of stainless steel, and the outsourcing is translucent PP board; a liquid recovery hole with a diameter of 50mm is opened at the bottom at a distance of 340mm from the long side and 400mm from the short side, so that the acid circulation and The recovery system, that is, the pneumatic diaphragm pump, is connected to the liquid recovery hole through a pipeline.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements can also be made, and these improvements should also be regarded as Protection scope of the present utility model.

Claims (3)

1. a silicon material immersion machine is characterized in that: comprise frame (1), acid solution circulation and recovery system (2), soaking compartment (3) and air exhausting device (4); Said soaking compartment (3) is fixed on the frame (1); Said soaking compartment (3) upper end is provided with groove lid (5); Said groove lid (5) is connected with soaking compartment (3) water-lute; The sidewall upper of said soaking compartment (3) is equipped with air exhausting device (4); Said soaking compartment (3) inside is provided with heating unit; Said acid solution circulation and recovery system (2) are connected with soaking compartment (3) bottom through pipeline.

2. silicon material immersion machine as claimed in claim 1 is characterized in that: said acid solution circulation and recovery system (2) are pneumatic diaphragm pump.

3. silicon material immersion machine as claimed in claim 1 is characterized in that: said frame (1) is fixedly formed by the stainless steel square tube.

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