阅读说明：本技术 一种覆膜盐田底部自动排气装置 (Tectorial membrane salt pan bottom automatic exhaust apparatus ) 是由 李洪岭 王青青 任慧 蒋中华 冯勇 任红伟 于 2019-12-09 设计创作，主要内容包括：本发明公开一种覆膜盐田底部自动排气装置,涉及无机盐的大面积盐田生产领域,包括透气垫层、防渗膜和多个排气管,透气垫层铺设于盐田底部的基层上,多个排气管设置于透气垫层中,各排气管上沿长度方向设置有多个排气孔组,透气垫层上铺设有防渗膜,防渗膜上方用于填充原料液,各排气管的两端沿盐田的边坡敷设,且各排气管两端的管口均与大气连通。本发明提供的覆膜盐田底部自动排气装置能够有效防止盐田底部产生气包,保证了覆膜盐田的长期使用。(The invention discloses an automatic exhaust device at the bottom of a film-coated salt field, which relates to the field of production of large-area salt fields of inorganic salts and comprises a gas permeable cushion layer, an anti-seepage film and a plurality of exhaust pipes, wherein the gas permeable cushion layer is laid on a base layer at the bottom of the salt field, the plurality of exhaust pipes are arranged in the gas permeable cushion layer, a plurality of exhaust hole groups are arranged on each exhaust pipe along the length direction, the anti-seepage film is laid on the gas permeable cushion layer, raw material liquid is filled above the anti-seepage film, two ends of each exhaust pipe are laid along the side slope of the salt field, and pipe orifices at two ends of each exhaust pipe are communicated with the. The automatic exhaust device for the bottom of the film-coated salt field can effectively prevent the bottom of the salt field from generating gas pockets, and ensures long-term use of the film-coated salt field.)

1. The utility model provides a tectorial membrane salt pan bottom automatic exhaust device, its characterized in that, includes ventilative bed course, prevention of seepage membrane and a plurality of blast pipe, ventilative bed course lays in the basic unit of salt pan bottom, and is a plurality of the blast pipe set up in the ventilative bed course, each be provided with a plurality of exhaust vent groups along length direction on the blast pipe, ventilative bed course upper berth is equipped with the prevention of seepage membrane, prevention of seepage membrane top is used for filling raw materials liquid, each the side slope of salt pan is laid along the both ends of blast pipe, and each the mouth of pipe at blast pipe both ends all communicates with the atmosphere.

2. The automatic bottom degassing device for film-covered salt pan as claimed in claim 1, wherein said gas-permeable cushion layer is laid by a material with a porosity of more than 30%.

3. The automatic bottom exhaust device for the film-covered salt pan as claimed in claim 2, wherein the material adopted by the air-permeable cushion layer is slag, wood chips or mixed sand.

4. The automatic degassing device for the bottom of the film-covered salt pan as claimed in claim 1, wherein the thickness of the air-permeable cushion layer is 5cm-50 cm.

5. The automatic bottom exhaust device for film-covered salt pan according to claim 1, wherein a plurality of exhaust pipes are arranged on a horizontal plane and arranged in parallel.

6. The automatic bottom exhaust device for the film-covered salt pan as claimed in claim 5, wherein the distance between two adjacent exhaust pipes is 0.5-20 m.

7. The automatic bottom exhaust device for the film-covered salt pan according to claim 1, wherein each exhaust hole group comprises a plurality of exhaust holes uniformly arranged along the circumferential direction of the exhaust pipe.

8. The automatic bottom exhaust device for the film-covered salt pan as claimed in claim 7, wherein the nominal diameter of the exhaust pipe is 20mm-100mm, the diameter of the exhaust hole is 3mm-10mm, and the distance between two adjacent exhaust holes along the length direction of the exhaust pipe is 10mm-5000 mm.

9. The automatic bottom degassing device for film-covered salt pan of claim 1, wherein the degassing pipe is a plastic pipe.

10. The automatic exhaust device for the bottom of the film-covered salt pan according to claim 1, wherein the impermeable film is a plastic impermeable film.

Technical Field

The invention relates to the field of production of large-area salt fields of inorganic salt, in particular to an automatic exhaust device for the bottom of a film-coated salt field.

Background

In the field of large-area salt pan production of inorganic salt, salt pan leakage is inevitable in the past salt pan production, the leakage rate of the salt pan is generally about 0.3-1.5mm/d, and the problem of bottleneck which is difficult to overcome is brought to efficient utilization and development of resources. In recent years, along with the development and research of salt field seepage-proofing technology, the problem of salt field leakage is effectively solved by the application of salt field bottom film covering technology, and the used film is made of PVC canvas or PE plastic film, but the following problems still exist: due to the unevenness of the bottom of the film-coated salt field and the geothermal effect, the bottom of the film-coated salt field is often bulged into air bags with different sizes after being used for a period of time, and the air bags contain air bearing certain pressure. The damage of the film is often caused by harvesting machinery in the salt pan harvesting process, the penetration of the salt pan is increased, and the damaged film covered on the salt pan is not easy to repair, so that great hidden danger is brought to the production of the salt pan.

Disclosure of Invention

In order to solve the technical problems, the invention provides the automatic exhaust device for the bottom of the film-coated salt field, which can effectively prevent the bottom of the salt field from generating gas pockets and ensure the long-term use of the film-coated salt field.

In order to achieve the purpose, the invention provides the following scheme:

the invention provides an automatic exhaust device for the bottom of a film-coated salt field, which comprises a gas permeable cushion layer, an impermeable film and a plurality of exhaust pipes, wherein the gas permeable cushion layer is laid on a base layer at the bottom of the salt field, the exhaust pipes are arranged in the gas permeable cushion layer, a plurality of exhaust hole groups are arranged on each exhaust pipe along the length direction, the impermeable film is laid on the gas permeable cushion layer, raw material liquid is filled above the impermeable film, two ends of each exhaust pipe are laid along the side slope of the salt field, and pipe orifices at two ends of each exhaust pipe are communicated with the atmosphere.

Preferably, the air permeable cushion layer is laid by a material with porosity of more than 30%.

Preferably, the material adopted by the air permeable cushion layer is slag, wood dust or mixed sand.

Preferably, the thickness of the air permeable cushion layer is 5cm-50 cm.

Preferably, a plurality of the blast pipe is located the horizontal plane and puts, and a plurality of blast pipe parallel arrangement.

Preferably, the distance between two adjacent exhaust pipes is 0.5m-20 m.

Preferably, each of the exhaust hole groups includes a plurality of exhaust holes uniformly arranged in a circumferential direction of the exhaust pipe.

Preferably, the nominal diameter of the exhaust pipe is 20mm-100mm, the diameter of the exhaust hole is 3mm-10mm, and the distance between two adjacent exhaust holes in the length direction of the exhaust pipe is 10mm-5000 mm.

Preferably, the exhaust pipe is a plastic pipe.

Preferably, the barrier film is a plastic barrier film.

Compared with the prior art, the invention has the following technical effects:

according to the automatic exhaust device for the bottom of the film-coated salt field, the air permeability increasing air cushion layer is arranged between the bottom base layer of the salt field and the anti-seepage film, so that the air at the bottom of the salt field can be conveniently communicated, the exhaust pipe is laid in the air permeability cushion layer and provided with the plurality of exhaust hole groups, air can be gathered at the bottom of the anti-seepage film to form an air bag due to unevenness of the bottom of the salt field and a geothermal effect, the air in the air bag can enter the exhaust pipe through the air permeability cushion layer under the pressure of raw material liquid of the salt field, and is exhausted to the atmosphere through the exhaust pipe, so that the condition generated by the air bag at the bottom of the film-coated salt field is eliminated, the problem that the film is easy to damage to increase the permeability of the salt field is solved, the hidden danger is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural view of an automatic exhaust device at the bottom of a film-covered salt pan provided by the invention.

Description of reference numerals: 1. a base layer; 2. a gas permeable cushion layer; 3. an exhaust pipe; 4. an exhaust hole; 5. an impermeable membrane; 6. a raw material liquid.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention aims to provide an automatic exhaust device for the bottom of a film-coated salt field, which can effectively prevent the bottom of the salt field from generating gas pockets and ensure long-term use of the film-coated salt field.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

As shown in fig. 1, the present embodiment provides a tectorial membrane salt pan bottom automatic exhaust apparatus, including ventilative cushion 2, prevention of seepage membrane 5 and a plurality of blast pipes 3, ventilative cushion 2 lays on the basic unit 1 of salt pan bottom, be convenient for the intercommunication of salt pan bottom air, a plurality of blast pipes 3 set up in ventilative cushion 2, be provided with a plurality of exhaust vent groups along length direction on each blast pipe 3, ventilative cushion 2 upper berth is equipped with prevention of seepage membrane 5, prevention of seepage membrane 5 top is used for filling raw materials liquid 6, the slope along the salt pan is laid at the both ends of each blast pipe 3, and the mouth of pipe at each blast pipe 3 both ends all communicates with the atmosphere. Because the unevenness and the geothermol power effect of salt pan bottom, the air can form the gas package in 5 bottom aggregations of prevention of seepage membrane, under the pressure of salt pan raw material liquid 6, the air in the gas package can be through among the ventilative bed 2 entering blast pipe 3, discharge to the atmosphere through blast pipe 3, the condition that tectorial membrane salt pan bottom gas package produced has been eliminated, thereby avoided the easy damaged problem that increases the salt pan infiltration of tectorial membrane, and need not to restore the tectorial membrane, avoid extravagant production time, also avoid bringing the hidden danger for the production of salt pan, the long-term use of tectorial membrane salt pan has been guaranteed.

In the production process, rolling and flattening of the base layer 1 are firstly carried out by using machinery at the bottom of the salt pan, the flatness and bearing capacity required by production are guaranteed, then the air permeable cushion layer 2 is laid on the upper portion of the base layer 1, the exhaust pipe 3 is laid in the air permeable cushion layer 2, after the air permeable cushion layer 2 with the exhaust pipe 3 laid is flattened, the anti-seepage film 5 is laid on the air permeable cushion layer 2, and raw material liquid 6 required by production is poured into the salt pan to carry out production operation.

Specifically, the exhaust pipe 3 includes a horizontal pipe and side pipes connected to both ends of the horizontal pipe, the horizontal pipe is laid in the air permeable cushion layer 2, the side pipes at both ends are laid along the side slopes on both sides of the salt pan, the upper ends of the side pipes at both ends are communicated with the atmosphere, the exhaust hole group is disposed on the horizontal pipe, and the side pipes are pipes without holes.

In order to ensure good air permeability, the breathable cushion layer 2 is formed by paving materials with porosity of more than 30%. In this embodiment, the material used for the air permeable cushion layer 2 is slag, wood chips or mixed sand, and specifically, one, two or three of the slag, wood chips or mixed sand are used for the air permeable cushion layer 2. The thickness of the air permeable cushion layer 2 is 5cm-50 cm.

The exhaust pipes 3 are located on a horizontal plane, and the exhaust pipes 3 are arranged in parallel. Specifically, the distance between two adjacent exhaust pipes 3 is 0.5m to 20 m. In this embodiment, the exhaust pipe 3 is located above the gas permeable cushion layer 2.

In order to provide the exhaust pipe 3 with a good exhaust effect, each exhaust hole group includes a plurality of exhaust holes 4 uniformly arranged in the circumferential direction of the exhaust pipe 3.

In the embodiment, the nominal diameter of the exhaust pipe 3 is 20mm-100mm, the diameter of the exhaust hole 4 is 3mm-10mm, and the distance between two adjacent exhaust holes 4 along the length direction of the exhaust pipe 3 is 10mm-5000 mm.

In the present embodiment, the exhaust pipe 3 is a plastic pipe, and specifically, the plastic pipe is made of PVC or PE. The impermeable membrane 5 is a plastic impermeable membrane.

The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.