A low-flash waste liquid unloading and conveying system suitable for containers of different specifications

Abstract

The present invention discloses a low-flashpoint waste liquid unloading, mixing, and conveying system suitable for containers of different specifications. The system comprises several waste liquid bucket covers respectively connected to containers of different specifications, a waste liquid mixing tank for mixing and mixing the waste liquids in the containers of different specifications, and a nitrogen supply system for inputting nitrogen into the containers and the waste liquid mixing tank. Several of the waste liquid bucket covers and the waste liquid mixing tank are respectively provided with nitrogen inlets connected to the nitrogen supply system. Several of the waste liquid bucket covers are respectively provided with waste liquid outlets for discharging the waste liquid in each container into the waste liquid mixing tank. The waste liquid mixing tank is provided with a waste liquid output port for discharging the mixed waste liquid and a waste gas output port for discharging the waste gas therein. The technical solution of the present invention efficiently solves the problems of unloading, mixing, and conveying low-flashpoint waste liquid from containers of different specifications.

Description

Technical Field

[0001] The present invention relates to the technical field of waste liquid disposal, and in particular to a low-flash waste liquid unloading and mixing conveying system suitable for containers of different specifications. Background Art

[0002] Currently, hazardous waste enterprises receive waste liquids in a variety of different packaging specifications, including 25L, 100L, 200L, and 1000L. Different packaging specifications have different interface specifications. Therefore, for low-flash waste liquid, a safe and efficient unloading and transportation system and method is urgently needed. In addition, different low-flash waste liquids vary in calorific value, viscosity, and pollutant element content. In order to ensure the stable operation of the incineration system and the stable compliance of flue gas, low-flash waste liquids need to be formulated. However, the existing treatment system cannot effectively solve the above problems. Therefore, the existing technology has defects and needs to be improved. Summary of the Invention

[0003] The main purpose of the present invention is to propose a low-flash waste liquid unloading, matching and conveying system suitable for containers of different specifications, aiming to efficiently solve the problems of unloading, matching and conveying low-flash waste liquid from containers of different specifications.

[0004] To achieve the above objectives, the present invention proposes a low-flash waste liquid unloading and mixing conveying system suitable for containers of different specifications, comprising a plurality of waste liquid bucket covers respectively connected to containers of different specifications, a waste liquid mixing tank for mixing and mixing the waste liquids in the containers of different specifications, and a nitrogen supply system for supplying nitrogen to each container and the waste liquid mixing tank;

[0005] Several of the waste liquid barrel covers and waste liquid mixing tanks are respectively provided with nitrogen inlets connected to the nitrogen supply system; several of the waste liquid barrel covers are respectively provided with waste liquid outlets for discharging the waste liquid inside each container into the waste liquid mixing tank; the waste liquid mixing tank is provided with a waste liquid output port for discharging the mixed waste liquid and a waste gas output port for discharging the waste gas inside it.

[0006] Preferably, the nitrogen inlets of the waste liquid barrel covers and the waste liquid mixing tanks are connected in parallel with a nitrogen pipeline, and the nitrogen pipeline is connected to the nitrogen supply system.

[0007] Preferably, a nitrogen pressure reducing valve and a nitrogen ball valve are sequentially installed between the nitrogen pipeline and the nitrogen supply system.

[0008] Preferably, the nitrogen inlet of any waste liquid barrel cover is located at the top of the container installed correspondingly thereto, and the waste liquid outlet of the waste liquid barrel cover is communicated with the bottom of the container.

[0009] Preferably, the waste liquid outlets of several of the waste liquid barrel covers are connected in parallel to a waste liquid unloading pipe, the waste liquid unloading pipe is connected to the waste liquid mixing tank, and a waste liquid unloading pump is installed on the waste liquid unloading pipe.

[0010] Preferably, the waste liquid output port of the waste liquid mixing tank is connected to a waste liquid output pipeline, and a waste liquid output pump and a first waste liquid output ball valve are installed on the waste liquid output pipeline.

[0011] Preferably, the waste liquid output pipeline is provided with two outlets, one of which is connected to the waste liquid mixing tank through a circulation pipeline, and a circulation ball valve is installed on the circulation pipeline, and the other outlet is connected to an external waste liquid incineration system, and a second waste liquid output ball valve and a first flame arrester are installed between the waste liquid output pipeline and the external waste liquid incineration system.

[0012] Preferably, the waste gas output port of the waste liquid mixing tank is connected to the external waste gas incineration system through a waste gas output pipe, and the waste gas output pipe is sequentially installed with a waste gas ball valve, a waste gas exhaust fan and a second flame arrester.

[0013] Preferably, the nitrogen inlets of several of the waste liquid barrel covers and the waste liquid mixing tanks are respectively equipped with nitrogen ball valves, and the waste liquid outlets of several of the waste liquid barrel covers and the circulating waste liquid inlets of the waste liquid mixing tanks are respectively equipped with waste liquid ball valves.

[0014] Preferably, the waste liquid mixing tank is also equipped with a pressure gauge and an oxygen gauge.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This solution can connect multiple waste liquid containers of different specifications in parallel, greatly improving the efficiency of waste liquid unloading;

[0017] 2. This solution uses nitrogen filling to pump the low-flash point waste liquid in the waste liquid barrel into the compatibility tank, avoiding direct contact between the low-flash point waste liquid and air and volatilization into the air, making the system stable and safe;

[0018] 3. This solution mixes various low-flash point waste liquids with high and low calorific values, high and low viscosities, etc. in the mixing tank through a delivery pump. After the waste liquids are mixed, the calorific value, viscosity, and pollutant element content of the mixed waste liquid are relatively moderate and relatively stable, effectively alleviating problems such as difficult transportation, poor atomization effect, and instantaneous exceeding of flue gas pollutants; BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of the system of the present invention;

[0021] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0022] This embodiment proposes a low-flash waste liquid unloading and mixing conveying system suitable for containers of different specifications, comprising a plurality of waste liquid bucket covers 1 connected to containers of different specifications, a waste liquid mixing tank 2 for mixing and mixing the waste liquids in the containers of different specifications, and a nitrogen supply system 3 for supplying nitrogen to each container and the waste liquid mixing tank 2;

[0023] Several of the waste liquid barrel covers 1 and the waste liquid mixing tank 2 are respectively provided with a nitrogen inlet connected to the nitrogen supply system 3; several of the waste liquid barrel covers 1 are respectively provided with a waste liquid outlet for discharging the waste liquid inside each container into the waste liquid mixing tank 2; the waste liquid mixing tank 2 is provided with a waste liquid output port for discharging the mixed waste liquid and a waste gas output port for discharging the waste gas inside it.

[0024] It should be noted that this embodiment can effectively solve the problems of low-flash point waste liquid unloading and transportation process processing efficiency of containers of different specifications, lack of compatibility pretreatment of waste liquid, etc., and multiple waste liquid containers of different specifications can be connected in parallel to improve the efficiency of waste liquid unloading and transportation processing, and realize the compatibility of various low-flash point waste liquids with high and low calorific values, high and low viscosities, etc., effectively alleviating problems such as difficult transportation, poor atomization effect, and instantaneous exceeding of flue gas pollutants, and the system is stable and safe.

[0025] Furthermore, a nitrogen pipeline 41 is connected in parallel to the nitrogen inlets of the waste liquid barrel lids 1 and the waste liquid compatibility tank 2. This nitrogen pipeline 41 is connected to the nitrogen supply system 3. A nitrogen pressure reducing valve 42 and a nitrogen ball valve 43 are sequentially installed between the nitrogen pipeline 41 and the nitrogen supply system 3. Nitrogen provided by the nitrogen supply system 3 is delivered to each container or the waste liquid compatibility tank 2 via the nitrogen pipeline 41, forcing the waste liquid in the container into the waste liquid compatibility tank 2 for mixing and compatibility.

[0026] Furthermore, the nitrogen inlet of any of the waste liquid barrel covers 1 is located at the top of the container to which it is mounted, and the waste liquid outlet of the waste liquid barrel cover 1 is connected to the bottom of the container. Nitrogen enters from the top of the container, generating pressure on the waste liquid in the container, thereby forcing the waste liquid toward the waste liquid outlet.

[0027] Furthermore, a waste liquid unloading pipe 51 is connected in parallel to the waste liquid outlets of the waste liquid barrel covers 1. The waste liquid unloading pipe 51 is connected to the waste liquid mixing tank 2, and a waste liquid unloading pump 52 is installed on the waste liquid unloading pipe 51. The unloading pump, in conjunction with nitrogen pressure, mixes the waste liquids in each container and inputs them into the waste liquid mixing tank 2.

[0028] Furthermore, the waste liquid output port of the waste liquid mixing tank 2 is connected to a waste liquid output pipe 61 , and a waste liquid output pump 62 and a first waste liquid output ball valve 67 are installed on the waste liquid output pipe 61 .

[0029] The waste liquid output pipe 61 is provided with two outlets, one of which is connected to the waste liquid mixing tank 2 through a circulation pipe 63, and a circulation ball valve 64 is installed on the circulation pipe 63; the other outlet is connected to an external waste liquid incineration system, and a second waste liquid output ball valve 65 and a first flame arrester 66 are installed between the waste liquid output pipe 61 and the external waste liquid incineration system.

[0030] Furthermore, the exhaust gas outlet of the waste liquid mixing tank 2 is connected to the external exhaust gas incineration system through an exhaust gas output pipe 71, and the exhaust gas output pipe 71 is sequentially installed with an exhaust ball valve 72, an exhaust gas exhaust fan 73 and a second flame arrester 74.

[0031] Furthermore, the nitrogen inlets of several of the waste liquid barrel covers 1 and the waste liquid mixing tanks 2 are respectively installed with nitrogen ball valves 81, and the waste liquid outlets of several of the waste liquid barrel covers 1 and the circulating waste liquid inlets of the waste liquid mixing tanks 2 are respectively installed with waste liquid ball valves 82.

[0032] Furthermore, the waste liquid mixing tank is also equipped with a pressure gauge and an oxygen gauge.

[0033] Specifically, refer to Figure 1 , the specific operation method of this system includes the following steps:

[0034] Step 1: Connect multiple containers of different specifications containing waste liquid to the waste liquid barrel cover 1 of corresponding specifications. It should be noted that conventional container specifications in this field include 25L, 100L, 200L, and 1000L. In this embodiment, two containers are selected for illustration;

[0035] Step 2: Open the nitrogen pressure reducing valve 42 and the nitrogen ball valve 43 at the nitrogen supply system 3, and the nitrogen ball valve 81 at the nitrogen inlet of the waste liquid compatibility tank 2, so that nitrogen enters the waste liquid compatibility tank 2. At the same time, open the waste gas ball valve 72, the waste gas exhaust fan 73, and the second flame arrester 74 at the waste gas output port of the waste liquid compatibility tank 2;

[0036] Step 3: Observe the oxygen meter on the waste liquid mixing tank 2. When the oxygen concentration meets the requirements, close the nitrogen ball valve 81, the waste gas ball valve 72, the waste gas exhaust fan 73, and the second flame arrester 74 of the corresponding waste liquid mixing tank 2;

[0037] Step 4: Open the nitrogen ball valve 81, waste liquid ball valve 82, waste liquid ball valve 82 of the circulating waste liquid inlet of the waste liquid compatibility tank 3, and waste liquid unloading pump 52 corresponding to the waste liquid barrel lids 1 of different specifications in sequence, and the nitrogen gas enters the containers of different specifications in sequence, and the waste liquid in the containers of different specifications enters the waste liquid compatibility tank 2 in sequence;

[0038] Step 5: Sequentially close the nitrogen ball valve 81, waste liquid ball valve 82, and waste liquid unloading pump 52 corresponding to the waste liquid barrel covers 1 of different specifications;

[0039] Step 6: Open the waste liquid output pump 62 connected to the circulation pipe 63, as well as the circulation ball valve 64, the waste liquid ball valve 82, and the first waste liquid output ball valve 67, and mix the waste liquids in the containers of different specifications evenly in the waste liquid mixing tank 2;

[0040] Step 7: Close the circulation ball valve 64 on the circulation pipeline and the waste liquid ball valve 82 at the circulating waste liquid inlet of the waste liquid compatibility tank 2, open the second waste liquid output ball valve 65 and the first flame arrester 66 in the waste liquid output pipeline 61, and at the same time open the nitrogen ball valve 81 corresponding to the waste liquid compatibility tank 2, so that nitrogen enters the waste liquid compatibility tank 2, and the waste liquid in the waste liquid compatibility tank 2 enters the incineration system;

[0041] Step 8: Close the waste liquid output pump 62, the first waste liquid output ball valve 67, the second waste liquid output ball valve 65, and the first flame arrester 66;

[0042] Step 9: Repeat steps 1 to 8 above.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A low-flash waste liquid unloading and delivery system suitable for containers of different specifications, characterized by: It includes several waste liquid barrel covers respectively connected to containers of different specifications, a waste liquid mixing tank for mixing the waste liquids in containers of different specifications, and a nitrogen supply system for inputting nitrogen into each container and the waste liquid mixing tank; Several of the waste liquid barrel covers and the waste liquid mixing tank are respectively provided with a nitrogen inlet connected to the nitrogen supply system; several of the waste liquid barrel covers are respectively provided with a waste liquid outlet for discharging the waste liquid in each container into the waste liquid mixing tank; the waste liquid mixing tank is provided with a waste liquid output port for discharging the mixed waste liquid and a waste gas output port for discharging the waste gas therein; A nitrogen pipeline is connected in parallel to the nitrogen inlets of the waste liquid barrel covers and the waste liquid mixing tanks, and the nitrogen pipeline is connected to the nitrogen supply system; The nitrogen inlet of any of the waste liquid barrel covers is located at the top of the container installed correspondingly thereto, and the waste liquid outlet of the waste liquid barrel cover is communicated with the bottom of the container; The waste liquid outlets of the waste liquid barrel covers are connected in parallel to a waste liquid unloading pipe, the waste liquid unloading pipe is connected to the waste liquid mixing tank, and a waste liquid unloading pump is installed on the waste liquid unloading pipe; The waste liquid output port of the waste liquid compatibility tank is connected to a waste liquid output pipeline, and a waste liquid output pump and a first waste liquid output ball valve are installed on the waste liquid output pipeline; The waste liquid output pipeline is provided with two outlets, one of which is connected to the waste liquid mixing tank through a circulation pipeline, and a circulation ball valve is installed on the circulation pipeline, and the other outlet is connected to an external waste liquid incineration system, and a second waste liquid output ball valve and a first flame arrester are installed between the waste liquid output pipeline and the external waste liquid incineration system.

2. The low-flash waste liquid unloading and mixing conveying system applicable to containers of different specifications as claimed in claim 1 is characterized in that: A nitrogen pressure reducing valve and a nitrogen ball valve are sequentially installed between the nitrogen pipeline and the nitrogen supply system.

3. The low-flash waste liquid unloading and mixing conveying system applicable to containers of different specifications as claimed in claim 1 is characterized in that: The waste gas output port of the waste liquid mixing tank is connected to the external waste gas incineration system through a waste gas output pipe, and the waste gas output pipe is sequentially installed with a waste gas ball valve, a waste gas exhaust fan and a second flame arrester.

4. The low-flash waste liquid unloading and mixing conveying system applicable to containers of different specifications according to any one of claims 1 to 3, characterized in that: The nitrogen inlets of several of the waste liquid barrel covers and the waste liquid mixing tanks are respectively equipped with nitrogen ball valves, and the waste liquid outlets of several of the waste liquid barrel covers and the circulating waste liquid inlets of the waste liquid mixing tanks are respectively equipped with waste liquid ball valves.

5. The low-flash waste liquid unloading and mixing conveying system applicable to containers of different specifications as claimed in claim 4 is characterized in that: The waste liquid mixing tank is also equipped with a pressure gauge and an oxygen gauge.

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