CN213591369U

CN213591369U - Disposal structure of mercury-containing lamp tube

Info

Publication number: CN213591369U
Application number: CN202021079806.1U
Authority: CN
Inventors: 赵涛; 夏同成; 张淼; 张治国
Original assignee: Beikong Urban Environmental Resources Yichang Co ltd
Current assignee: Beikong Urban Environmental Resources Yichang Co ltd
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2021-07-02
Anticipated expiration: 2030-06-12

Abstract

A disposal structure of a mercury-containing lamp tube relates to the technical field of disposal of discarded mercury-containing lamp tubes. A plurality of scrapped mercury-containing lamp tubes are gathered and placed in the center of the ton barrel, and the plurality of scrapped mercury-containing lamp tubes form scrapped mercury-containing lamp tube gathering bodies; a gap space is formed between the aggregate and the side wall of the ton barrel, and a gap space is also formed between the aggregate and the bottom and the upper part of the ton barrel; a sulfide layer covers the surface of the scrapped mercury-containing lamp tube aggregate or the surface of the scrapped mercury-containing lamp tube; the gap between the abandoned mercury-containing lamp tubes in the abandoned mercury-containing lamp tube aggregate is filled with concrete containing sulfide, the gap space between the abandoned mercury-containing lamp tube aggregate and the ton barrel is also filled with concrete containing sulfide, and the concrete containing sulfide is solidified into a whole, so that the abandoned mercury-containing lamp tubes are fixedly embedded into the concrete containing sulfide. The application can effectively prevent mercury diffusion.

Description

Disposal structure of mercury-containing lamp tube

Technical Field

The utility model belongs to the technical field of the environmental protection, a scrap mercury-containing fluorescent tube is dealt with is related to.

Background

At present, the mercury content of a T12 mercury-containing lamp tube with a tube diameter of 36mm in China is about 25-45 mg; the mercury content of a T5 mercury-containing lamp tube with the tube diameter of 16mm is about 20 mg; the mercury content of a compact mercury-containing lamp tube with a diameter of 10mm is about 10 mg. About 9 hundred million mercury-containing lamp tubes are produced in recent years in China, and the total mercury content in the mercury-containing lamp tubes produced in every year in China is about 27t according to the average mercury content of each lamp tube of 30 mg.

The scrapped lamp tubes are discarded at will or mixed in a large amount in household garbage, so that mercury is easy to diffuse after the lamp tubes are broken, and the health of residents is seriously harmed. 360 tons of water can be contaminated with 1mg of mercury. Once in the body, mercury rapidly diffuses and accumulates in tissues and organs such as the kidney, the chest, etc. The mercury-containing wastewater is discharged into a water body, and the metallic mercury and the inorganic mercury can be converted into the methyl mercury by bacteria, can quickly penetrate into cells, and can easily pass through a blood brain barrier to destroy nerve cells. Therefore, if the mercury is not properly recycled, it will cause great harm to the ecological environment.

At present, the disposal method of the mercury-containing lamp tube mainly comprises an incineration method and a recycling method, wherein the incineration method can cause the gasification of mercury in the mercury-containing lamp tube and is easy to cause secondary pollution; the recycling method has large demand on the mercury-containing lamp tube, large construction investment in the early stage and higher operation cost, and if no sufficient mercury-containing lamp tube is discarded, sufficient profit cannot be ensured, and the method is not feasible.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems of the prior art, the utility model provides a disposal structure and a disposal method for a mercury-containing lamp tube.

A disposal structure of a mercury-containing lamp tube is characterized by comprising a ton barrel, a sulfide layer, a scrapped mercury-containing lamp tube and sulfur-containing concrete; the sulfur-containing concrete, the sulfide layer and the scrapped mercury-containing lamp tubes are positioned in the ton barrel, the plurality of scrapped mercury-containing lamp tubes are gathered and placed at the center of the ton barrel, and the plurality of scrapped mercury-containing lamp tubes form scrapped mercury-containing lamp tube gathering bodies; a gap space is formed between the scrapped mercury-containing lamp tube aggregate and the side wall of the ton barrel; a gap space is also formed between the scrapped mercury-containing lamp tube aggregate and the bottom of the ton barrel; a gap space is also formed between the scrapped mercury-containing lamp tube aggregate and the upper part of the ton barrel; a sulfide layer covers the surface of the scrapped mercury-containing lamp tube aggregate or the surface of the scrapped mercury-containing lamp tube; and sulfur-containing concrete is filled in the gap between the waste mercury-containing lamp tubes in the scrapped mercury-containing lamp tube aggregate, and the gap space between the scrapped mercury-containing lamp tube aggregate and the ton barrel is also filled with the sulfur-containing concrete, and the sulfur-containing concrete is solidified into a whole, so that the scrapped mercury-containing lamp tubes are fixedly embedded into the sulfur-containing concrete. The sulfur-containing concrete is prepared by adding sulfide into concrete.

The radial size of a gap space between the scrapped mercury-containing lamp tube aggregate and the side wall of the ton barrel is 10-30 cm; the axial size of a gap space between the scrapped mercury-containing lamp tube aggregate and the bottom of the ton barrel is 10-30 cm; the axial size of a gap space between the scrapped mercury-containing lamp tube aggregate and the upper part of the ton barrel is 10-30 cm;

the ton barrel is made of plastic and the like.

The sulfide is selected from one or more of sodium sulfide, sulfur or thiourea.

The amount of sulphide in the sulphide layer is in excess with respect to the mercury content in the lamp vessel, i.e. the sulphide reacts in theoretical molar excess.

The sulfur-containing concrete is as follows: mixing and stirring sulfide, water, cement and sand and stone materials to prepare concrete, wherein the concrete comprises the following components in percentage by weight: cement: the mass ratio of the sand stone material (sand: stone) is 3: 5 (0.01-0.02) to 1: 2.5: 6, wherein the mass ratio of the sand and stone materials is 3: 5 mixture of sand and stone.

A method for disposing a mercury-containing lamp tube, comprising the steps of:

(1) mixing and stirring sulfide, water, cement and sandstone materials in proportion to prepare concrete doped with sulfide;

(2) opening an upper cover of the ton barrel, pouring prepared concrete doped with sulfide into the ton barrel, and enabling the concrete doped with sulfide to be fully distributed at the bottom of the ton barrel;

(3) placing a plurality of mercury-containing lamp tubes in the middle of the ton barrel to form a scrapped mercury-containing lamp tube aggregate, wherein the lamp tubes are placed by utilizing the inner space of the ton barrel as much as possible, and meanwhile, a space is reserved between the lamp tubes and the top of the ton barrel, and a space is reserved between the lamp tubes and the side surface of the ton barrel;

(4) pouring sulfide into the position of the aggregate of the discarded mercury-containing lamp tubes to cover a layer of sulfide on the discarded mercury-containing lamp tubes;

(5) pouring concrete doped with sulfide into the ton bucket for curing and forming, and filling the gap between the mercury lamp-containing tubes and the gap between the lamp tubes and the ton bucket with the concrete as much as possible;

(6) and moving the formed building block to a curing room for curing for 7 days at normal temperature. And testing the leaching toxicity of the cured building blocks in a laboratory area, placing the building blocks which meet the landfill requirement in a landfill site after covering the closed ton barrel, and curing the building blocks which do not meet the landfill standard after crushing, wherein the building blocks can be placed in the landfill site after being qualified.

When mercury in the waste mercury-containing lamp tube leaks, the mercury vapor is absorbed by the excessive sodium sulfide (sulfur or thiourea) at the inner layer to form mercury sulfide for curing; part of unabsorbed mercury is blocked by the middle concrete block, so that the mercury vapor is effectively prevented from diffusing; the outer square box protects, avoids mercury vapour to leak conscientiously, and the mercury vapour in the final old and useless mercury-containing fluorescent tube is whole to form the solidification of mercuric sulfide, and the square box also can protect the building block to avoid the washing away of groundwater simultaneously, avoids mercury to cause the pollution to soil, groundwater.

Drawings

Fig. 1 is a picture of a ton bucket solid used in the disposal method.

Fig. 2 is a sectional view of the ton bucket.

FIG. 3 is a schematic view of the operation of loading sand and stone after the cover of the ton barrel is removed.

In the figure: 1. ton bucket, 2, ton bucket feed inlet, 3, ton bucket fork truck frame, 4, ton bucket upper cover, 5, sulphide layer, 6, scrap mercury-containing fluorescent tube, 7, the concrete that mixes there is the sulphide, 8, ton bucket inside wall.

Detailed Description

The following will describe the implementation of the disposal method of the mercury-containing lamp tube with reference to fig. 1-3. However, the present invention is not limited to the following examples.

Example 1

The specific disposal structure of the mercury-containing lamp tube is shown in figure 1.

The treatment steps of the mercury-containing lamp tube comprise the following steps:

(1) mixing and stirring sodium sulfide (sulfur or thiourea), water, cement and aggregate to prepare concrete, wherein the proportion of the aggregate is that the mercury-containing lamp tube: the ratio of sand to stone is 1:30, and the concrete is sodium sulfide (sulfur or thiourea) to water: cement: sandstone material (sand: pebble: 3: 5) ═ 0.01: 1: 2.5: 6.

(2) and opening the upper cover of the ton barrel, pouring the prepared concrete into the open ton barrel to enable the sand and stone materials to be distributed at the bottom of the ton barrel, wherein the thickness of the bottom layer concrete is 20 cm.

(3) Mercury-containing lamp tubes are placed in the ton barrel (horizontally placed or vertically placed), the internal space of the ton barrel is utilized as much as possible when the lamp tubes are placed, meanwhile, a space of 20cm is reserved between the lamp tubes and the top of the ton barrel, and a space of 10cm is reserved between the lamp tubes and the side face of the ton barrel.

(4) Sodium sulfide (sulfur or thiourea) with the same weight as the mercury content of the mercury-containing lamp tube is poured in.

(5) And pouring concrete into the ton bucket for curing and forming, and filling the gap between the mercury lamp-containing tubes and the gap between the lamp tubes and the ton bucket with the concrete as much as possible.

The patent adopts 3 layers of protection means to effectively control the release of mercury in the waste mercury-containing lamp tubes to the environment, and is an effective process for managing the treatment of the waste mercury-containing lamp tubes.

The disposal method of the mercury-containing lamp tube is suitable for the disposal of small-batch and discontinuous mercury-containing lamp tubes.

Claims

1. A disposal structure of a mercury-containing lamp tube is characterized by comprising a ton barrel, a sulfide layer, a scrapped mercury-containing lamp tube and sulfur-containing concrete; the sulfur-containing concrete, the sulfide layer and the scrapped mercury-containing lamp tubes are positioned in the ton barrel, the plurality of scrapped mercury-containing lamp tubes are gathered and placed at the center of the ton barrel, and the plurality of scrapped mercury-containing lamp tubes form scrapped mercury-containing lamp tube gathering bodies; a gap space is formed between the scrapped mercury-containing lamp tube aggregate and the side wall of the ton barrel; a gap space is also formed between the scrapped mercury-containing lamp tube aggregate and the bottom of the ton barrel; a gap space is also formed between the scrapped mercury-containing lamp tube aggregate and the upper part of the ton barrel; a sulfide layer covers the surface of the scrapped mercury-containing lamp tube aggregate or the surface of the scrapped mercury-containing lamp tube; and sulfur-containing concrete is filled in the gap between the waste mercury-containing lamp tubes in the scrapped mercury-containing lamp tube aggregate, and the gap space between the scrapped mercury-containing lamp tube aggregate and the ton barrel is also filled with the sulfur-containing concrete, and the sulfur-containing concrete is solidified into a whole, so that the scrapped mercury-containing lamp tubes are fixedly embedded into the sulfur-containing concrete.

2. The disposal structure for mercury-containing lamp tubes as recited in claim 1, wherein the radial dimension of the void space between the mass of the discarded mercury-containing lamp tubes and the sidewall of the ton barrel is 10-30 cm; the axial size of a gap space between the scrapped mercury-containing lamp tube aggregate and the bottom of the ton barrel is 10-30 cm; the axial size of the gap space between the scrapped mercury-containing lamp tube aggregate and the upper part of the ton barrel is 10-30 cm.

3. The structure of claim 1, wherein the ton drum is made of plastic.

4. A disposal structure for mercury-containing fluorescent tubes as set forth in claim 1, wherein the sulfide is selected from one of sodium sulfide, sulfur and thiourea.

5. A disposal structure for mercury-containing fluorescent tubes as set forth in claim 1, wherein the discarded mercury-containing fluorescent tubes are placed horizontally or/and vertically.