阅读说明：本技术 一种玻璃生产用原料酸洗方法 (Acid pickling method for raw materials for glass production ) 是由 赖国强 于 2020-05-19 设计创作，主要内容包括：本发明属于玻璃生产加工领域,尤其是涉及一种玻璃生产用原料酸洗方法,包括以下步骤：S1,进料,将所需酸洗的原料由送料机送入酸洗罐内,将罐口密封；S2,加热,通入热蒸汽对酸洗罐进行加热,加热至60℃-100℃后持续保温；S3,投入酸液,向酸洗罐内注入适量酸液,酸液上方液面刚好没过出酸管的管口；S4,酸洗提纯,打开循环泵使酸液在酸洗罐和回流罐内循环回流6-8h；S5,排出酸液,将酸洗罐内的酸液排出至酸液回收储存槽内；S6,冲洗出料,酸洗罐冷却后,使用清水冲洗原料2-3次后卸料。本发明可通过酸洗液在酸洗罐内循环流动,保证酸洗液与原料表面充分接触反应,酸洗液与原料颗粒可均匀接触,加快了酸洗液与杂质的反应速度问题。(The invention belongs to the field of glass production and processing, and particularly relates to a raw material acid pickling method for glass production, which comprises the following steps: s1, feeding, namely feeding the raw materials to be pickled into a pickling tank through a feeding machine, and sealing the tank opening; s2, heating, introducing hot steam to heat the pickling tank, and keeping the temperature after heating to 60-100 ℃; s3, adding acid liquor, and injecting a proper amount of acid liquor into the acid washing tank, wherein the liquid level above the acid liquor just exceeds the pipe orifice of the acid outlet pipe; s4, acid washing and purifying, wherein a circulating pump is started to circulate and reflux the acid liquid in an acid washing tank and a reflux tank for 6-8 h; s5, discharging acid liquor, and discharging the acid liquor in the acid washing tank to an acid liquor recovery storage tank; s6, washing and discharging, cooling the pickling tank, washing the raw materials for 2-3 times by using clean water, and discharging. The invention can ensure that the pickling solution is in full contact reaction with the surface of the raw material through the circulating flow of the pickling solution in the pickling tank, the pickling solution can be in uniform contact with the raw material particles, and the reaction speed of the pickling solution and impurities is accelerated.)

1. The acid washing method of the raw materials for producing the glass is characterized by mainly comprising the following steps:

s1, feeding, namely feeding the raw materials to be pickled into a pickling tank (1) through a feeding machine (3), and sealing the tank opening;

s2, heating, introducing hot steam to heat the pickling tank (1), and keeping the temperature after heating to 60-100 ℃;

s3, adding acid liquor, injecting a proper amount of acid liquor into the pickling tank (1), wherein the liquid level above the acid liquor just exceeds the pipe orifice of the acid outlet pipe (12), and the pickling liquor comprises the following components: 10-15 wt% of hydrochloric acid; 3-8 wt% of hydrofluoric acid; 5-10 wt% of nitric acid;

s4, acid washing and purifying, wherein a circulating pump (5) is started to circulate and reflux the acid liquid in an acid washing tank (1) and a reflux tank (2) for 6-8h, so that the acid liquid and impurities in the raw materials are subjected to sufficient chemical reaction, and the impurities on the surface layer and the shallow layer of the raw materials are separated;

s5, discharging acid liquor, and after impurity removal of the acid liquor is completed, discharging the acid liquor in the acid washing tank into an acid liquor recovery storage tank (4);

s6, washing and discharging, cooling the pickling tank, washing the raw material for 2-3 times by using clean water, and discharging to obtain a purified raw material;

the glass pickling process also relates to pickling equipment, the pickling equipment comprises a pickling tank (1), a backflow tank (2), a feeding machine (3) and an acid liquor recovery storage tank (4), the feeding machine (3) is installed on the top surface of the pickling tank (1), the pickling tank (1) is communicated with the backflow tank (2) through an acid inlet pipe (11) and an acid outlet pipe (12), the inlet end of the acid inlet pipe (11) is arranged at the bottom of the pickling tank (1), the outlet end of the acid outlet pipe (12) is arranged at the upper end part of the pickling tank (1), a circulating pump (5) is installed on the acid inlet pipe (11), and the acid liquor recovery storage tank (4) is communicated with the pickling tank (1);

the pickling tank (1) is obliquely arranged, the included angle between the central axis and the horizontal plane is 30 degrees, a plurality of flow baffle plates (13) which are arranged at equal intervals are arranged in the pickling tank (1), and the flow baffle plates (13) are respectively arranged on the inner top surface and the inner bottom surface of the pickling tank (1) and are arranged in a staggered manner;

be equipped with filter layer (21) and adsorbed layer (22) in backward flow jar (2), filter layer (21) are piled up by the blue stone son and are formed, adsorbed layer (22) are made by activated carbon fiber material.

2. The method for pickling a raw material for glass production according to claim 1, wherein the flow baffle plate (13) is made of a corrosion-resistant material, and a plurality of flow blocking pieces (14) are equidistantly mounted on a side wall of the flow baffle plate (13), and the flow blocking pieces (14) are parallel to the axial direction of the pickling tank (1).

3. The method for pickling a raw material for glass production according to claim 1, wherein a plurality of cleaning balls (6) are provided in the pickling tank (1), and the cleaning balls (6) are made of a deformable material.

Technical Field

The invention belongs to the field of glass production and processing, and particularly relates to a pickling method of a raw material for glass production.

Background

In the manufacturing and production of glass, quartz sand is an important mineral raw material, the quartz sand mineral raw material often contains a large amount of metal impurities, and the impurities in the quartz sand need to be removed during production so as to ensure the quality of glass products.

When the existing pickling tank is used for pickling, acid liquor is difficult to uniformly contact quartz sand particles, impurities of the acid liquor are difficult to fully contact with the acid liquor and are difficult to dissolve, and the product quality cannot be ensured at all; the mode that the motor stirred is partly adopted, make quartz sand surface and acidizing fluid fully contact reaction, though solved the homogeneity of acidizing fluid and quartz sand granule contact and increased the reaction rate problem of acidizing fluid and impurity, nevertheless because the quartz sand raw materials is anomalous many arriss limit granule, and hardness is great, very easily wearing and tearing at stirring in-process stirring rod can increase the impurity in the pickling tank on the contrary and cause secondary pollution, from this, traditional pickling tank is difficult to guarantee the pickling effect of quartz sand raw materials, and pickling efficiency is lower.

Therefore, we propose a raw material pickling method for glass production to solve the above problems.

Disclosure of Invention

The invention aims to provide a raw material pickling method for glass production, which has a good impurity removal effect and high efficiency and aims at solving the problems of poor pickling effect and low efficiency.

In order to achieve the purpose, the invention adopts the following technical scheme: a raw material pickling method for glass production mainly comprises the following steps:

s1, feeding, namely feeding the raw materials to be pickled into a pickling tank through a feeding machine, and sealing the tank opening;

s2, heating, introducing hot steam to heat the pickling tank, and keeping the temperature after heating to 60-100 ℃;

s3, adding acid liquor, and injecting a proper amount of acid liquor into the acid washing tank, wherein the liquid level above the acid liquor just submerges the pipe orifice of the acid outlet pipe, and the acid washing solution comprises the following components: 10-15 wt% of hydrochloric acid; 3-8 wt% of hydrofluoric acid; 5-10 wt% of nitric acid;

s4, acid washing and purifying, wherein a circulating pump is started to circulate and reflux the acid liquid in an acid washing tank and a reflux tank for 6-8h, so that the acid liquid and impurities in the raw materials are subjected to sufficient chemical reaction, and the impurities on the surface layer and the shallow layer of the raw materials are separated;

s5, discharging acid liquor, and after impurity removal of the acid liquor is completed, discharging the acid liquor in the acid washing tank into an acid liquor recovery storage tank;

s6, washing and discharging, cooling the pickling tank, washing the raw material for 2-3 times by using clean water, and discharging to obtain a purified raw material;

the glass pickling process also relates to pickling equipment, the pickling equipment comprises a pickling tank, a backflow tank, a feeding machine and an acid liquor recovery storage tank, the feeding machine is installed on the top surface of the pickling tank, the pickling tank is communicated with the backflow tank through an acid inlet pipe and an acid outlet pipe, the inlet end of the acid inlet pipe is arranged at the bottom of the pickling tank, the outlet end of the acid outlet pipe is arranged at the upper end part of the pickling tank, a circulating pump is installed on the acid inlet pipe, and the acid liquor recovery storage tank is communicated with the pickling tank;

the pickling tank is arranged in an inclined manner, the included angle between the central axis and the horizontal plane is 30 degrees, a plurality of flow baffle plates which are arranged at equal intervals are arranged in the pickling tank, and the flow baffle plates are respectively arranged on the inner top surface and the inner bottom surface of the pickling tank and are arranged in a staggered manner;

and a filter layer and an adsorption layer are arranged in the backflow tank, the filter layer is formed by stacking bluestone particles, and the adsorption layer is made of an activated carbon fiber material.

Preferably, the flow blocking plate is made of corrosion-resistant materials, a plurality of flow blocking pieces are equidistantly mounted on the side wall of the flow blocking plate, and the flow blocking pieces are parallel to the axis direction of the pickling tank.

Preferably, a plurality of cleaning balls are arranged in the pickling tank, and the cleaning balls are made of deformable materials.

Compared with the prior art, the acid washing method of the raw materials for producing the glass has the advantages that:

1. according to the invention, the reflux tank and the circulating pump are arranged, so that the pickling solution in the pickling tank is circulated and refluxed in a low-in and high-out mode, the pickling solution continuously flows among the raw material particles, the full contact reaction between the pickling solution and the surface of the raw material is ensured, the pickling solution and the raw material particles can be uniformly contacted, and the reaction speed of the pickling solution and impurities is accelerated.

2. According to the invention, the flow path of the pickling solution in the pickling tank is greatly prolonged by arranging the plurality of baffle plates which are arranged in a staggered manner, the pickling solution can be ensured to flow in the pickling tank fully and uniformly, dead corners are prevented from being left, the full and uniform pickling of the raw material can be realized without using a motor stirring mode, the problem of secondary pollution is avoided, and the impurity removal amount of the raw material is increased.

3. According to the invention, the filter layer and the adsorption layer are arranged, the filter layer can filter impurities carried by the pickling solution in the reflux process, and the adsorption layer can adsorb cl generated in the pickling solution^-Ions promote the forward proceeding of impurity removal reaction in the pickling tank, effectively shorten the pickling reaction time and improve the pickling efficiency.

4. According to the invention, the cleaning ball is arranged, the cleaning ball can flow in the pickling tank along with the pickling solution, friction is generated between the cleaning ball and the raw material in the process, and because the pickling tank is obliquely arranged, the depths of the liquid surfaces of the pickling solution at the horizontal positions in the pickling tank are different, and the water pressures of the pickling solution are different, so that the shape of the pickling ball is changed due to the change of the water pressure in the pickling tank 1, impurities attached to the surfaces of the raw material particles are polished and carried into the backflow tank and adsorbed in the filter layer, a good primary impurity removal effect is achieved, the washing time of the subsequent washing process is saved, and the improvement of the working efficiency is facilitated.

Drawings

FIG. 1 is a flow chart of acid pickling process of raw material acid pickling for glass production according to the present invention;

FIG. 2 is a schematic structural diagram of example 1 of a pickling method of a raw material for glass production according to the present invention;

FIG. 3 is a schematic structural diagram of example 2 of the acid washing method of a raw material for glass production according to the present invention;

FIG. 4 is a schematic structural diagram of a cleaning ball in example 2 of the acid washing method of a raw material for glass production according to the present invention.

In the figure, 1 a pickling tank, 11 an acid inlet pipe, 12 an acid outlet pipe, 13 a flow baffle plate, 14 a flow baffle, 2 a reflux tank, 21 a filter layer, 22 an adsorption layer, 3 a feeder, 4 an acid liquid recovery storage tank, 5 a circulating pump and 6 a cleaning ball.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.