A silicon-based organic waste liquid storage tank

Abstract

The utility model discloses a kind of silicon organic waste liquid storage tanks, including tank body, the top side of tank body is communicated with inflatable structure;Still including the bottom pipe structure of being assembled on tank body, the bottom pipe structure includes bottom pipe, the bottom of bottom pipe is close to the bottom in tank body;Still including the shroud structure of being covered in the top position of tank body, the shroud structure includes fixed in the upper cover body portion of tank body, the upper cover body portion is equipped with upper cover body portion, the top cover of upper cover body portion can be opened, closed cover body;The shroud structure is used to form nitrogen atmosphere, and the safety of flushing, waste liquid and transportation is improved by forming nitrogen atmosphere.The above structure effectively solves the technical defects of high risk of silicon organic waste liquid storage, transportation, pumping treatment.

Description

Technical Field

[0001] This utility model belongs to the field of silicon-based organic waste liquid storage technology, and particularly relates to a silicon-based organic waste liquid storage tank. Background Technology

[0002] Most silicon-based organic compounds (such as diisopropylamine silane, trimethylsilylamine, bis(diethylamino)silane, etc.) in the silicon precursor industry have the characteristics of spontaneous combustion upon contact with air, and release flammable and spontaneously combustible gases upon contact with water, acids and alkalis, which are extremely dangerous.

[0003] In the production, packaging, and hazardous waste disposal processes of silicon precursors, silicon-based organic waste liquids are inevitably generated. Conventional hazardous waste packaging methods use 200L plastic or iron drums and plastic ton containers to package the waste liquids, which have relatively poor sealing and pressure resistance.

[0004] When hazardous waste disposal units handle hazardous waste, it is inevitable that the waste liquid will mix with air, water, and other hazardous wastes, which can easily cause the waste liquid to react and release flammable and spontaneously combustible gases.

[0005] Using conventional hazardous waste packaging containers could potentially lead to fires and explosions.

[0006] Therefore, adopting a waste liquid storage tank with a high safety factor is very important for improving the safety of storing and treating hazardous chemical waste liquids.

[0007] The reason is that the aforementioned silicon-based organic waste liquid contains a large amount of highly reactive materials. In the process of storing and treating such waste liquid, it is often necessary to open the storage equipment and treat the waste liquid by dumping. Once the waste liquid is spilled, it is easy to spontaneously combust when it comes into contact with air, which can easily cause very serious safety accidents.

[0008] Currently, the devices used for storing waste liquid, including the aforementioned barrels and the tank structures disclosed in existing technology, cannot guarantee their safety. This is evident in operations such as when materials are being poured into the barrels or tanks; if the material spills, the exposed tops of the barrels and tanks increase the surface area exposed to air, greatly increasing the risk of violent chemical reactions and fires.

[0009] At the same time, this type of exposed tank and drum structure has a major drawback: during transportation (such as to a hazardous chemical processing plant), if the sealing cap or valve structure on the tank or drum is not completely sealed, the material can easily spill out from the tank, causing an accident. Utility Model Content

[0010] Based on the above background, the purpose of this utility model is to provide a storage tank for silicon-based organic waste liquid.

[0011] To achieve the above objectives, the present invention adopts the following technical solution:

[0012] A storage tank for silicon-based organic waste liquid includes a tank body, and an air-filling structure is connected to one side of the top of the tank body;

[0013] It also includes a bottom insertion tube structure assembled on the tank body, the bottom insertion tube structure including a bottom insertion tube, the bottom of which is close to the bottom of the tank body;

[0014] It also includes a protective cover structure that covers the top of the tank, the protective cover structure being used to create a nitrogen atmosphere.

[0015] The protective cover structure includes upper and lower cover parts fixed to the tank body, the lower cover part is equipped with an upper cover part, and the top cover of the upper cover part is a cover that can be opened and closed;

[0016] It also includes a fork structure fixedly installed at the bottom of the tank. The fork structure includes a support fixedly connected to the bottom of the tank. Several protruding fork seats are integrally formed on the support, and the fork seats cooperate with the fork arms of the forklift.

[0017] Preferably, the inflation structure includes a nitrogen filling pipe connected to the top of the tank, and a valve is fitted onto the nitrogen filling pipe.

[0018] Preferably, the upper cover portion and the lower cover portion are detachably assembled and connected by a detachable connection structure.

[0019] Preferably, the detachable connection structure includes annular flanges integrally formed at the bottom of the upper cover and the top of the lower cover, respectively;

[0020] The annular flanges are connected by a number of connecting screws.

[0021] Preferably, the tank body includes an upper tank section and an intermediate tank section that is sealed and welded to the upper tank section, and the intermediate tank section is sealed and welded to a lower tank section;

[0022] The upper part of the can is curved.

[0023] Preferably, the top of the upper tank is welded with a plurality of welding seats welded to the outer side wall of the lower cover.

[0024] Preferably, the lower cover portion and the upper cover portion are cylindrical in shape.

[0025] Preferably, the upper end of the insertion tube is located on the top outer side of the upper tank.

[0026] A valve is fitted and connected to the upper end of the insertion tube;

[0027] The insertion tube includes a vertical tube section and an inclined tube section integrally formed on the vertical tube section, with the inclined tube section located near the bottom center of the lower tank section.

[0028] Preferably, a bracket is fixedly connected to the lower end of the vertical tube section. The bracket includes a sleeve fixedly connected to the vertical tube section, a bracket rod welded to the sleeve, and the bracket rod fixedly connected to the inner wall of the intermediate tank section.

[0029] Preferably, a pair of symmetrically arranged lifting lugs are welded to the top of the upper tank.

[0030] This utility model has the following beneficial effects:

[0031] 1. A protective cover structure is installed on the top (upper tank) of the tank because the flushing and pumping of waste liquid are carried out from the bottom pipe opening at the top of the tank. Therefore, in the event of a waste liquid leak during operation, if the connection between the bottom pipe opening and the external pump waste liquid pipe is not sufficiently tight (similar to the existing method of filling the tank with waste liquid, where the waste liquid is filled by connecting the bottom pipe opening to the external pump waste liquid pipe to flush the waste liquid into the tank, the relative sealing of the protective cover structure reduces the contact between the spilled waste liquid and the air).

[0032] 2. Because the protective cover structure is a relatively sealed structure, nitrogen gas is injected into the protective cover structure during operation to form a nitrogen atmosphere. That is, the inlet of the bottom pipe and the waste liquid pipe of the pump are in a nitrogen atmosphere. Even if waste liquid leaks, the waste liquid falls into the relatively sealed cavity formed by the protective cover structure. And because the cavity is in a nitrogen atmosphere, the risk of waste liquid spontaneously combusting is further avoided.

[0033] 3. It solves the problem that if waste liquid is spilled from traditional tanks or barrels onto the ground, it is prone to rapid combustion due to the large surface area exposed to air.

[0034] 4. Since the nitrogen filling pipe of the tank is located inside the protective cover structure, nitrogen can be injected into the protective cover structure simply by pulling out the external nitrogen filling pipe. Utilizing the fact that nitrogen is denser than air, the nitrogen concentration inside the protective cover structure can be maintained at a certain level during the filling process. Therefore, this method fundamentally avoids safety accidents such as spillage of waste liquid during filling and subsequent drainage.

[0035] 5. The protective structure of the shield structure not only enhances the safety of the tank during transportation, but also increases the safety of the tank. For example, if the shaken waste liquid leaks from the opening of the nitrogen charging pipe or the bottom extraction pipe with the valve not tightened during transportation, the nitrogen gas is already being pumped into the tank for protection during the process of flushing the waste liquid. Since the valve of the nitrogen charging pipe or the bottom extraction pipe is not tightened, the nitrogen gas will also be discharged and remain in the sealed cavity formed by the shield structure. Therefore, even if a leak occurs, the waste liquid can still be prevented from coming into contact with the air naturally because it is in a nitrogen atmosphere.

[0036] 6. The protective cover structure designed in this utility model fundamentally solves the drawbacks of safety accidents that may occur during the storage, transportation, and pumping of waste liquid. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model;

[0039] Figure 2 This is a schematic diagram of the structure of the nitrogen filling pipe and the bottom extraction pipe with valves in this embodiment of the present invention;

[0040] Figure 3 This is an embodiment of the present utility model. Figure 1 The top view in the image.

[0041] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0043] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0044] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0045] Example 1

[0046] like Figure 1-3 As shown, a storage tank for silicon-based organic waste liquid includes a tank body 1 (volume in the range of 800L). Similar to existing tank bodies 1, which are manufactured using welding, the tank body 1 in this invention is also formed by welding. Specifically, the tank body 1 includes an upper tank section 11 and an intermediate tank section 12 sealed and welded to the upper tank section 11. The intermediate tank section 12 is sealed and welded to a lower tank section 13. The upper tank section 11 is curved in shape. Weld A is located at the junction between the tank sections.

[0047] The top left of the tank 1 (upper tank 11) is connected to an air-filling structure. Specifically, the air-filling structure allows inert gas, such as nitrogen, to be filled into the tank 1. This increases the safety of the waste liquid stored in the tank 1 because the air inside the tank 1 is expelled by nitrogen during the process of flushing the silicon-based organic waste liquid into the tank 1. Furthermore, during the subsequent process of pumping the waste liquid from the tank 1 to treatment equipment such as an incinerator for incineration, the injection of nitrogen increases the pressure inside the tank 1, allowing for drainage by utilizing the pressure difference. At the same time, nitrogen protection is provided during the drainage process. This method increases the safety of the tank 1 in storing and treating silicon-based organic waste liquid.

[0048] A bottom insertion tube structure is installed on the right side of the aforementioned tank 1. The bottom insertion tube structure includes a bottom insertion tube 4, the bottom of which is close to the bottom of the tank 1.

[0049] The bottom pipe 4 structure enables the waste liquid to be flushed into the tank 1 and discharged during the incineration process.

[0050] Specifically, the inflation structure includes a nitrogen filling pipe 5 connected to the top of the tank 1, and a valve 6 is installed on the nitrogen filling pipe 5.

[0051] The upper end of the bottom insertion pipe 4 is located on the top outer side of the upper tank 11; at the same time, a valve 6 is installed and connected to the upper end of the bottom insertion pipe 4. The corresponding valve 6 is opened during the processes of nitrogen filling, waste liquid filling, and waste liquid pumping.

[0052] The shape of the insertion tube 4 is as follows:

[0053] The insertion tube 4 includes a vertical tube section and an inclined tube section 41 integrally formed on the vertical tube section. The inclined tube section 41 is located near the bottom center of the lower tank section 13. Meanwhile, a support is fixedly connected to the lower end of the vertical tube section. The support includes a sleeve 421 fixedly connected to the vertical tube section, and a support rod 42 is welded to the sleeve 421. The support rod 42 is fixedly connected to the inner wall of the intermediate tank section 12. This method increases the stability of the insertion tube 4.

[0054] By designing the bottom insertion pipe 4 with the aforementioned structure, when waste liquid is flushed into the tank 1, the waste liquid is discharged from near the bottom of the tank 1. This method increases the safety of flushing waste liquid because the small distance between the pipe and the bottom of the tank 1 reduces the impact of the waste liquid on the tank 1, thus increasing the safety of waste liquid filling during the flushing process. Similarly, during the waste liquid extraction process, the waste liquid is fully extracted.

[0055] The extraction method is as follows: nitrogen is filled into tank 1, increasing the pressure chamber inside tank 1. When the valve of the bottom pipe 4 is opened, the waste liquid is flushed into the incinerator for incineration using the pressure difference.

[0056] Example 2

[0057] like Figure 1-3 As shown, this embodiment, based on the structure of embodiment 1, includes improvements to the overall safety of the tank 1 during the waste liquid storage, transportation, and waste liquid extraction stages. The present invention makes the following improvements to the tank 1:

[0058] A protective cover structure 2 is installed on the top of tank 1 (upper tank 11) because the flushing and pumping of waste liquid are both carried out from the inlet of the bottom suction pipe 4 at the top of tank 1. Therefore, in the event of a waste liquid leak during operation, if the connection between the inlet of the bottom suction pipe 4 and the external pump waste liquid pipe is not sufficiently tight (similar to the existing method of filling tank 1 with waste liquid, where the waste liquid is flushed into tank 1 by connecting the inlet of the bottom suction pipe 4 to the external pump waste liquid pipe, specifically using the conventional connection method between existing pipes, such as a flange connection or a joint connection; for example, the waste liquid is pumped into tank 1 by connecting the threaded joint on the external pump waste liquid pipe to the inlet of the bottom suction pipe 4), the relative sealing of the protective cover structure 2 reduces the contact between spilled waste liquid and air. The total height of the protective cover structure 2 is 560mm, the horizontal projection is circular, and the diameter is 1000mm.

[0059] Therefore, a sealed cavity of approximately a certain volume can be formed, which allows for the filling of a larger amount of protective nitrogen during the subsequent formation of a nitrogen atmosphere, thus providing a longer-lasting nitrogen protective atmosphere for pumping waste liquid and extracting waste liquid.

[0060] Meanwhile, since the protective cover structure 2 is a relatively sealed structure, nitrogen gas is injected into the protective cover structure 2 during the operation to form a nitrogen atmosphere. That is, the pipe opening of the bottom pipe 4 and the pump waste liquid pipe are in a nitrogen atmosphere. Even if waste liquid leaks, the waste liquid falls into the relatively sealed cavity formed by the protective cover structure 2. And because the cavity is in a nitrogen atmosphere, the risk of waste liquid spontaneously combusting is further avoided.

[0061] In contrast, traditional tanks and barrels, once spilled, are prone to rapid combustion due to their large surface area exposed to air.

[0062] Since the nitrogen filling pipe 4 of tank 1 is located inside the protective structure 2, nitrogen can be injected into the protective structure 2 simply by pulling out the external nitrogen filling pipe. Because nitrogen is denser than air, the nitrogen concentration inside the protective structure 2 can be maintained at a certain level during the filling process. Therefore, this method fundamentally avoids safety accidents such as spillage of waste liquid during filling and subsequent drainage.

[0063] Meanwhile, the protective structure 2 also increases the safety of the tank 1 during transportation. For example, if the shaken waste liquid leaks from the nitrogen charging pipe or the bottom extraction pipe 4 with the valve not tightened during transportation, the tank 1 is protected by nitrogen gas during the process of flushing the waste liquid. Since the valve of the nitrogen charging pipe 4 or the bottom extraction pipe 4 is not tightened, the nitrogen gas will also be discharged and remain in the sealed cavity formed by the protective structure 2. Therefore, even if a leak occurs, the waste liquid can be prevented from coming into contact with the air naturally because it is in a nitrogen atmosphere.

[0064] Therefore, the protective cover structure 2 designed in this utility model fundamentally solves the drawbacks of safety accidents that may occur during the storage, transportation, and pumping of waste liquid.

[0065] Example 3

[0066] like Figure 1-3 As shown, this embodiment discloses the specific structure of the protective cover structure 2 based on the structure of embodiment 2.

[0067] The protective cover structure 2 includes a lower cover portion 21 fixed to the tank body 1, and an upper cover portion 22 is installed on the lower cover portion 21. The top cover of the upper cover portion 22 is a cover 23 that can be opened and closed. The installation of the upper cover portion 22 on the lower cover portion 21 is intended to increase the cavity size of the protective cover structure 2, thereby increasing the foundation for subsequent filling with more nitrogen and maintaining a nitrogen atmosphere for a longer period of time. This longer nitrogen atmosphere provides sufficient effective nitrogen protection concentration time for flushing and pumping out waste liquid. Therefore, the entire process of filling and pumping out waste liquid is completed within an effective nitrogen protection atmosphere.

[0068] Specifically, the upper cover portion 22 and the lower cover portion 21 are detachably connected by a detachable connection structure. The detachable connection structure includes annular flanges 24 integrally formed at the bottom of the upper cover portion 22 and the top of the lower cover portion 21, respectively; the annular flanges 24 are connected by a plurality of connecting screws.

[0069] The upper cover portion 22 and the lower cover portion 21 are cylindrical in shape.

[0070] The top of the upper tank 11 is welded with several welding seats 211 that are welded to the outer wall of the lower cover 21.

[0071] Specifically, the upper can portion 11 has a curved shape. When the cylindrical lower cover portion 21 is placed into the upper can portion 11, the bottom of the lower cover portion 21 is in close contact with the upper can portion 11. Furthermore, the upper can portion 11 and the lower cover portion 21 are sealed and welded together using existing sealing welding methods.

[0072] Meanwhile, the stability of the lower cover 21 is maintained by the welding and fixing of the welding seat (the lower cover 21 is supported by the welding seat 211).

[0073] In actual operation, to increase sealing performance, sealing gaskets (not shown in the figure) are installed between the annular flanges 24 in the existing manner. Specifically, the installation method is the same as that of existing sealing gaskets, with gasket grooves opened on the sidewalls of the annular flanges 24 facing each other, and the gaskets placed in the gasket grooves.

[0074] With the gasket sealing, a seal is formed when the upper cover portion 22 and the lower cover portion 21 are assembled.

[0075] The cover 23 is a conventional cylindrical cover disclosed in the prior art. In order to increase the sealing performance, the cover 23 is fastened to the upper cover part 22 by a threaded connection, such as the inner side wall of the cover 23 and the outer side wall of the upper cover part 22 having a threaded structure.

[0076] When the cover 23 is tightened, the bottom tube 4 and the nitrogen filling tube are in a relatively sealed environment.

[0077] During the filling or pumping of waste liquid, although the cover 23 is open, nitrogen gas is injected into the upper cover 22 and the lower cover 21 by taking advantage of the fact that nitrogen gas is denser than air, so that the operation can be carried out in a nitrogen atmosphere.

[0078] Example 4

[0079] like Figure 1-3As shown, this embodiment, based on the structure of embodiment 3, requires the tank 1 to be raised onto the transport vehicle during waste liquid transportation. This invention increases the volume of tank 1 to 800L. Therefore, to facilitate forklift operation, it also includes a forklift structure 3 fixedly installed at the bottom of tank 1. The forklift structure 3 includes a support 31 fixedly connected to the bottom of tank 1. The support 31 is fixed to the bottom of tank 1 by welding.

[0080] In actual operation, depending on the bottom shape of the tank 1, if the bottom of the tank 1 is curved, a curved groove is opened on the top of the support 31 to increase the area supporting the bottom of the tank 1 and thus increase the installation stability of the tank 1. If the bottom of the tank 1 is flat, the top surface of the support 31 is a flat structure that is directly welded and fixed.

[0081] Meanwhile, to facilitate forklift operation, the aforementioned support 31 is integrally formed with several protruding fork holders 32, which cooperate with the forklift's fork arms. Specifically, the fork holders 32 have fork slots for inserting the forklift's fork arms.

[0082] After being transported to its destination, in order to facilitate the hoisting of the tank 1 onto the work platform of the incinerator, according to the existing hoisting method of the tank 1, a pair of symmetrically arranged lifting lugs 111 are welded to the top of the upper tank 11.

[0083] During the hoisting process, the cover 23 is opened, and in the same way as the existing method, the lifting lug 111 is pulled by steel wire rope and then suspended by a crane.

[0084] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A storage tank for silicon-based organic waste liquid, comprising a tank body, a gas charging structure being communicated with one side of the top of the tank body; characterized in that, It also includes a bottom insertion tube structure assembled on the tank body, the bottom insertion tube structure including a bottom insertion tube, the bottom of which is close to the bottom of the tank body; It also includes a protective cover structure covering the top of the tank, the protective cover structure including upper and lower cover parts fixed to the tank, the lower cover part having an upper cover part installed on it, and the top cover of the upper cover part having a cover that can be opened and closed; the protective cover structure is used to form a nitrogen atmosphere.

2. The silicon-based organic liquid waste storage tank according to claim 1, wherein The inflation structure includes a nitrogen filling pipe connected to the top of the tank, and a valve is installed on the nitrogen filling pipe.

3. The silicon-based organic liquid waste storage tank according to claim 1, wherein The upper cover and the lower cover are detachably assembled and connected by a detachable connection structure.

4. The silicon-based organic liquid waste storage tank according to claim 3, wherein The detachable connection structure includes annular flanges integrally formed at the bottom of the upper cover and the top of the lower cover, respectively. The annular flanges are connected by a number of connecting screws.

5. The silicon-based organic liquid waste storage tank according to claim 1, wherein The tank body includes an upper tank section and an intermediate tank section that is sealed and welded to the upper tank section, and a lower tank section is sealed and welded to the intermediate tank section; The upper can section is curved in shape; A pair of symmetrically arranged lifting lugs are welded to the top of the upper tank.

6. The silicon-based organic liquid waste storage tank according to claim 5, wherein The top of the upper tank is welded with several welding seats that are welded to the outer wall of the lower cover.

7. The silicon-based organic liquid waste storage tank according to claim 1, wherein The lower cover and the upper cover are cylindrical in shape.

8. The silicon-based organic liquid waste storage tank according to claim 5, wherein The upper end of the insertion tube is located on the top outer side of the upper tank. A valve is fitted and connected to the upper end of the insertion tube; The insertion tube includes a vertical tube section and an inclined tube section integrally formed on the vertical tube section, with the inclined tube section located near the bottom center of the lower tank section.

9. The silicon-based organic liquid waste storage tank according to claim 8, wherein A bracket is fixedly connected to the lower end of the vertical tube section. The bracket includes a sleeve fixedly connected to the vertical tube section, a bracket rod welded to the sleeve, and the bracket rod fixedly connected to the inner wall of the intermediate tank section.

10. The silicon-based organic liquid waste storage tank according to claim 5, wherein The silicon-based organic waste liquid storage tank also includes a fork structure fixedly installed at the bottom of the tank body. The fork structure includes a support fixedly connected to the bottom of the tank body. Several protruding fork seats are integrally formed on the support, and the fork seats cooperate with the fork arms of a forklift.

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