Lead dust harmless treatment equipment

Abstract

The utility model relates to the technical field of lead dust chemical treatment, and discloses lead dust harmless treatment equipment which comprises a reaction tank and further comprises a chemical agent box, an ash bucket, a filter chamber and a conveying device, the side face of the reaction tank is fixedly connected with the side face of the chemical agent box, the top end of the reaction tank is fixedly connected with the bottom end of the ash bucket, and the conveying device is fixedly connected with the ash bucket. A reaction tank is formed in the reaction tank, a spring is fixedly connected to the bottom end of the reaction tank, a filter screen is placed at the top end of the spring, a connecting rod is fixedly connected to the side face of the filter screen, a transverse plate is fixedly connected to one end of the connecting rod, and the connecting rod moves along a vertical groove formed in the side face of the reaction tank. The opposite side of a vertical groove of the reaction tank is fixedly connected with a water drainage pipe, the side face of the reaction tank is fixedly connected with a dilute acetic acid tank and a sodium hydroxide tank, the reaction tank is arranged below the filter chamber, the reaction tank is used for conducting secondary treatment on filtered lead-containing particles through a chemical method, and effective purification of lead dust is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of lead dust chemical treatment technology, and more specifically to a lead dust harmless treatment device. Background Technology

[0002] Lead dust refers to fine dust containing metallic lead or lead compounds. Lead-containing fumes are generally generated during the smelting and processing of lead or other heavy metals, as well as the production of lead products. The lead dust in these fumes becomes one of the air pollutants. High-temperature heating also produces lead dust. When lead is heated to 400-500℃, lead vapor is released to form lead fumes, which in turn produce lead dust. Lead dust enters the human body through the respiratory tract, esophagus, and skin, and is difficult to excrete naturally, accumulating in the body and leading to lead poisoning. This causes damage to the nervous system, hematopoietic system, urinary system, etc., causing various symptoms. Lead dust also pollutes the air and damages the atmospheric environment. In severe cases, it may cause larger-scale ecological problems. Lead dust poses a serious threat to human health and the environment, and effective prevention and control measures are needed to reduce its generation and emission.

[0003] Current technology is inadequate: After physical treatment of lead-containing fumes, general lead dust harmless treatment equipment leaves behind substances that have no recycling value and still pollute the environment, so the harmless treatment is not very effective. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a lead dust harmless treatment device to solve the problems existing in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lead dust harmless treatment device, comprising a reaction tank, and further comprising: a chemical reagent tank, an ash hopper, a filter chamber, and a conveying device. The side of the reaction tank is fixedly connected to the side of the chemical reagent tank, the top of the reaction tank is fixedly connected to the bottom of the ash hopper, the top of the ash hopper is fixedly connected to the bottom of the filter chamber, the side of the filter chamber is fixedly connected to one end of the conveying device, a reaction tank is provided inside the reaction tank, a spring is fixedly connected to the bottom of the reaction tank, a filter screen is placed on the top of the spring, a connecting rod is fixedly connected to the side of the filter screen, a horizontal plate is fixedly connected to one end of the connecting rod, the connecting rod moves along a vertical groove opened on the side of the reaction tank, a drain pipe is fixedly connected to the opposite side of the vertical groove of the reaction tank, and a dilute acetic acid tank and a sodium hydroxide tank are fixedly connected to the side of the reaction tank.

[0006] Furthermore, the dilute acetic acid tank includes a conveying pipeline, a switch valve is fixedly connected to the side of the conveying pipeline, a corrosion-resistant box is fixedly connected to one end of the conveying pipeline, a base is fixedly connected to the bottom of the corrosion-resistant box, and an automatic control device is fixedly connected to the top of the corrosion-resistant box. The side of the automatic control device is fixedly connected to the switch valve via a wire.

[0007] Furthermore, an acid-base sensor is fixedly connected to the side of the automatic control device one via a wire two. The side of the acid-base sensor is fixedly connected to the side of the reaction tank. A sensor is fixedly connected to the bottom of the side of the acid-base sensor, and the sensor is located on the side of the reaction tank.

[0008] Furthermore, the side of the automatic control device is fixedly connected to the sodium hydroxide tank via the second conveying pipe, and the sodium hydroxide tank has the same structure as the dilute acetic acid tank.

[0009] Furthermore, the ash hoppers are arranged in an array.

[0010] Furthermore, the filter chamber is equipped with filter bags arranged in an array. A fixing ring is fixedly connected to the top of each filter bag, and a partition is fixedly connected to the bottom of the fixing ring. The edge of the partition is fixedly connected to the inner wall of the filter chamber. A nozzle is provided above each filter bag, and the number of nozzles is the same as the number of filter bags, with each nozzle corresponding to the other in position. A blowpipe is fixedly connected to the top of each nozzle, and a pulse controller is fixedly connected to one end of the blowpipe. An automatic control device is fixedly connected to the top of the pulse controller.

[0011] Furthermore, an exhaust pipe is fixedly connected to the side of the filter chamber, a heating device is fixedly connected to the bottom end of the exhaust pipe, a fan is fixedly connected to the bottom end of the heating device through the exhaust pipe, and an air inlet pipe is fixedly connected to the side of the fan.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. This utility model has a reaction tank located below the filter chamber. After the lead-containing dust is filtered once in the filter chamber, the lead-containing particles are subjected to secondary chemical treatment in the reaction tank, which helps to ensure the effective purification of lead dust.

[0014] 2. This utility model, by providing a chemical reagent box, takes appropriate anti-corrosion measures to store chemical reagents separately, which is beneficial for better preservation of the reagents and ensures that the properties and reaction effects of the reagents are not affected. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall internal structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the reaction tank of this utility model;

[0018] Figure 4This is a schematic diagram of the structure of the chemical reagent box of this utility model;

[0019] Figure 5 This is a schematic diagram of the filter chamber of this utility model;

[0020] Figure 6 This is a schematic diagram of the conveying device of this utility model.

[0021] The attached diagram is labeled as follows: 1. Reaction tank; 101. Reaction vessel; 102. Spring; 103. Filter screen; 104. Connecting rod; 105. Horizontal plate; 106. Drainage pipe; 2. Chemical reagent tank; 201. Dilute acetic acid tank; 2011. Conveying pipeline one; 2012. Switch valve; 2013. Corrosion-resistant box; 2014. Base; 2015. Automatic control device one; 2016. Wire one; 2017. Wire two; 2018. pH sensor; 2019, sensor; 202, sodium hydroxide tank; 2021, conveying pipe II; 3, ash hopper; 4, filter chamber; 401, filter bag; 402, fixing ring; 403, baffle plate; 404, nozzle; 405, blowpipe; 406, pulse controller; 407, automatic control device II; 5, conveying device; 501, exhaust pipe; 502, heating device; 503, fan; 504, air inlet pipe. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The lead dust harmless treatment equipment involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Reference Figures 1 to 6This utility model provides a lead dust harmless treatment device, including a reaction tank 1, and further including: a chemical reagent tank 2, an ash hopper 3, a filter chamber 4, and a conveying device 5. The side of the reaction tank 1 is fixedly connected to the side of the chemical reagent tank 2, and the top of the reaction tank 1 is fixedly connected to the bottom of the ash hopper 3. The ash hoppers 3 are arranged in an array, and the top of the ash hopper 3 is fixedly connected to the bottom of the filter chamber 4. The side of the filter chamber 4 is fixedly connected to one end of the conveying device 5. A reaction tank 101 is opened inside the reaction tank 1, and a spring 102 is fixedly connected to the bottom of the reaction tank 101. A filter screen 10 is placed on the top of the spring 102. 3. A connecting rod 104 is fixedly connected to the side of the filter screen 103. A horizontal plate 105 is fixedly connected to one end of the connecting rod 104. The connecting rod 104 moves along the vertical groove opened on the side of the reaction tank 1. The user can lift the filter screen 103 by manually lifting the horizontal plate 105 and with the support of the spring. A horizontal groove is opened on the side of the reaction tank 1. The filter screen 103 is taken out from the horizontal groove and the reaction precipitate is recovered. A drain pipe 106 is fixedly connected to the opposite side of the vertical groove of the reaction tank 1. After the reaction is completed, the reaction liquid is discharged through the drain pipe 106. A dilute acetic acid tank 201 and a sodium hydroxide tank 202 are fixedly connected to the side of the reaction tank 1.

[0024] The dilute acetic acid tank 201 includes a conveying pipe 2011, a switch valve 2012 fixedly connected to the side of the conveying pipe 2011, a corrosion-resistant box 2013 fixedly connected to one end of the conveying pipe 2011, a base 2014 fixedly connected to the bottom of the corrosion-resistant box 2013, and an automatic control device 2015 fixedly connected to the top of the corrosion-resistant box 2013. The side of the automatic control device 2015 is fixedly connected to the switch valve 2012 via a wire 2016. After lead oxide powder accumulates at the bottom of the reaction tank 101, the automatic control device 2015 controls the switch valve 2012 to open, adding dilute acetic acid solution into the reaction tank 101.

[0025] Among them, an acid-base sensor 2018 is fixedly connected to the side of the automatic control device 1 2015 via a wire 2 2017. The side of the acid-base sensor 2018 is fixedly connected to the side of the reaction tank 1. A sensor 2019 is fixedly connected to the bottom of the side of the acid-base sensor 2018. The sensor 2019 is set on the side of the reaction tank 101. The acid-base sensor 2018 is used to detect the reaction progress and feed back the reaction status to the automatic control device 1 2015.

[0026] The automatic control device 2015 is fixedly connected to the sodium hydroxide tank 202 via the conveying pipe 2021. The sodium hydroxide tank 202 has the same structure as the dilute acetic acid tank 201. After the dilute acetic acid solution reacts fully with the lead oxide, the automatic control device 2015 controls the sodium hydroxide tank 202 to add sodium hydroxide solution to the reaction tank 101.

[0027] The filter chamber 4 contains filter bags 401 arranged in an array. A fixing ring 402 is fixedly connected to the top of each filter bag 401, and a partition 403 is fixedly connected to the bottom of the fixing ring 402. The edge of the partition 403 is fixedly connected to the inner wall of the filter chamber 4. A nozzle 404 is provided above each filter bag 401. The number of nozzles 404 is the same as the number of filter bags 401, and their positions correspond one-to-one. A blowpipe 405 is fixedly connected to the top of each nozzle 404. A pulse controller 406 is fixedly connected to one end of the blowpipe 405. An automatic control device 407 is fixedly connected to the top of the pulse controller 406. When the pulse controller 406 is activated, the airflow quickly passes through the blowpipe 405 and the nozzle 404 and blows into the interior of the filter bags 401. The dust particles on the surface of the filter bags 401 vibrate and fall off, entering the reaction tank 1 through the ash hopper 3.

[0028] The filter chamber 4 is fixedly connected to an exhaust pipe 501 on its side. A heating device 502 is fixedly connected to the bottom of the exhaust pipe 501. A fan 503 is fixedly connected to the bottom of the heating device 502 through the exhaust pipe 501. An air inlet pipe 504 is fixedly connected to the side of the fan 503. Lead-containing dust enters the equipment through the air inlet pipe 504, is accelerated by the fan 503, and is reacted with oxygen by the heating device 502 to generate lead oxide particles, which are convenient for subsequent chemical treatment.

[0029] The working principle of this utility model is as follows: Lead-containing dust enters the equipment through the inlet pipe 504, is accelerated by the fan 503, and passes through the heating device 502. Under heating, lead vapor reacts with oxygen to generate lead oxide, which appears as a yellow or slightly reddish yellow powder or fine flaky crystals. When the dust-containing gas passes through the filter bag 401, the lead oxide particles adhere to the outer surface of the filter bag 401. When a certain amount of dust particles accumulate on the surface of the filter bag 401, the pulse controller 406 is activated, and the airflow quickly passes through the blowpipe 405 and nozzle 404, blowing into the inside of the filter bag 401. The dust particles on the surface of the filter bag 401 vibrate and fall off, entering the reaction tank 1 through the ash hopper 3.

[0030] The reaction tank 1 has a reaction vessel 101 inside, and lead oxide powder is piled up at the bottom of the reaction vessel 101. The side of the reaction tank 1 is fixedly connected to a dilute acetic acid tank 201 and a sodium hydroxide tank 202 through a first conveying pipe 2011 and a second conveying pipe 2021, respectively. At this time, the automatic control device 2015 controls the switch valve 2012 to open, adding dilute acetic acid solution into the reaction vessel 101. The acidic solution reacts with lead oxide to produce lead acetate and water. Lead acetate is toxic and easily soluble in water, so it cannot be discharged directly. The automatic control device 2015 controls the sodium hydroxide tank 202 to add sodium hydroxide solution to the reaction vessel 101, generating sodium acetate and lead hydroxide precipitate. Sodium acetate is non-toxic, easily soluble in water, does not pollute water bodies, and can be discharged directly. Lead hydroxide can be recycled and reused.

[0031] After the reaction in the reaction tank 1 is fully completed, non-toxic water can be discharged through the drain pipe 106. The filter screen 103 is lifted by manually raising the horizontal plate 105 and with the support of the spring. The filter screen 103 is then removed through the opening on the side of the reaction tank 1 to recover the lead hydroxide precipitate generated in the reaction.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lead dust harmless treatment device, comprising a reaction tank (1), characterized in that, Also includes: The reaction tank (1) consists of a chemical reagent tank (2), an ash hopper (3), a filter chamber (4), and a conveying device (5). The side of the reaction tank (1) is fixedly connected to the side of the chemical reagent tank (2). The top of the reaction tank (1) is fixedly connected to the bottom of the ash hopper (3). The top of the ash hopper (3) is fixedly connected to the bottom of the filter chamber (4). The side of the filter chamber (4) is fixedly connected to one end of the conveying device (5). A reaction tank (101) is provided inside the reaction tank (1). The bottom of the reaction tank (101) is fixedly connected to... There is a spring (102), and a filter screen (103) is placed on the top of the spring (102). A connecting rod (104) is fixedly connected to the side of the filter screen (103). A horizontal plate (105) is fixedly connected to one end of the connecting rod (104). The connecting rod (104) moves along a vertical groove opened on the side of the reaction tank (1). A drain pipe (106) is fixedly connected to the opposite side of the vertical groove of the reaction tank (1). A dilute acetic acid tank (201) and a sodium hydroxide tank (202) are fixedly connected to the side of the reaction tank (1).

2. The lead dust harmless treatment equipment according to claim 1, characterized in that: The dilute acetic acid tank (201) includes a first conveying pipe (2011), a switch valve (2012) is fixedly connected to the side of the first conveying pipe (2011), a corrosion-resistant box (2013) is fixedly connected to one end of the first conveying pipe (2011), a base (2014) is fixedly connected to the bottom end of the corrosion-resistant box (2013), and an automatic control device (2015) is fixedly connected to the top end of the corrosion-resistant box (2013). The side of the automatic control device (2015) is fixedly connected to the switch valve (2012) through a first wire (2016).

3. The lead dust harmless treatment equipment according to claim 2, characterized in that: The side of the automatic control device (2015) is fixedly connected to an acid-base sensor (2018) via a wire (2017). The side of the acid-base sensor (2018) is fixedly connected to the side of the reaction tank (1). A sensor (2019) is fixedly connected to the bottom of the side of the acid-base sensor (2018). The sensor (2019) is located on the side of the reaction tank (101).

4. The lead dust harmless treatment equipment according to claim 2, characterized in that: The side of the automatic control device (2015) is fixedly connected to the sodium hydroxide tank (202) via the second conveying pipe (2021), and the sodium hydroxide tank (202) has the same structure as the dilute acetic acid tank (201).

5. The lead dust harmless treatment equipment according to claim 1, characterized in that: The ash hoppers (3) are arranged in an array.

6. The lead dust harmless treatment equipment according to claim 2, characterized in that: The filter chamber (4) is provided with filter bags (401) arranged in an array. A fixing ring (402) is fixedly connected to the top of the filter bag (401). A partition (403) is fixedly connected to the bottom of the fixing ring (402). The edge of the partition (403) is fixedly connected to the inner wall of the filter chamber (4). A nozzle (404) is provided above the filter bag (401). The number of nozzles (404) is the same as the number of filter bags (401), and their positions correspond one-to-one. A blow pipe (405) is fixedly connected to the top of the nozzle (404). A pulse controller (406) is fixedly connected to one end of the blow pipe (405). An automatic control device (407) is fixedly connected to the top of the pulse controller (406).

7. The lead dust harmless treatment equipment according to claim 2, characterized in that: An exhaust pipe (501) is fixedly connected to the side of the filter chamber (4). A heating device (502) is fixedly connected to the bottom end of the exhaust pipe (501). A fan (503) is fixedly connected to the bottom end of the heating device (502) through the exhaust pipe (501). An air inlet pipe (504) is fixedly connected to the side of the fan (503).

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