An environmentally friendly excavation device for soil containing yellow phosphorus

Abstract

The invention discloses an environmentally friendly excavation device for soil containing yellow phosphorus, comprising: an excavator body, an excavator control device, a liquid spraying device, and a sand leakage device. Through the above-mentioned method, the environmentally friendly excavation device for soil containing yellow phosphorus of the invention reduces the excavation cost of yellow phosphorus soil, improves excavation efficiency, reduces the generation of toxic and harmful substances, and improves the safety of excavation.

Description

Technical Field

[0001] The invention relates to the field of soil excavation equipment, in particular to an environmentally friendly excavation device for soil containing yellow phosphorus. Background Art

[0002] With the change of urban development plan, pesticide factories have moved to new sites. In order to promote urban economic development, it is urgent to treat soil pollution in retired plant areas to meet new development plans. Pesticide factories use yellow phosphorus as raw material to prepare organophosphorus insecticides. There are often yellow phosphorus production workshops in the plant area. After site investigation, it was found that the soil in the retired plant area contained yellow phosphorus. Yellow phosphorus is a self-igniting substance with a low ignition point. It can smoke and catch fire when subjected to slight friction, vibration or impact. It is easy to react chemically with sulfur, halogens, hydrogen, etc. to produce toxic and flammable substances. In addition to being able to burn itself, yellow phosphorus can also be used as a fire source to cause the combustion of other combustibles and cause secondary accidents.

[0003] The widely used excavators can only meet the purpose of excavating soil and transferring soil. When excavating yellow phosphorus soil, it is easy to cause the excavation temperature to be too high, and the soil will smoke and cause safety accidents. Therefore, there is a great risk in excavating contaminated soil containing yellow phosphorus. In order to minimize the casualties, property losses and social impact caused by yellow phosphorus excavation accidents and incidents, a widely used safe excavation equipment for yellow phosphorus contaminated soil is needed. Summary of the invention

[0004] The main technical problem solved by the present invention is to provide an environmentally friendly excavation device for soil containing yellow phosphorus, which has the advantages of high reliability, precise positioning, compact structure, etc., and has broad market prospects in the application and popularization of soil excavation equipment.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is:

[0006] Provided is an environmentally friendly excavation device for soil containing yellow phosphorus, comprising: an excavator body, an excavator control device, a liquid spraying device, and a sand leakage device, wherein the excavator control device is connected to the liquid spraying device and the sand leakage device.

[0007] The liquid spraying device includes a temperature sensor for detecting temperature during excavation, a liquid tank, a water level sensor, a liquid taking pipe, a pressure spraying device, a liquid spraying hole, and a baffle. The liquid tank is arranged at the head of the excavator body, the water level sensor is arranged in the liquid tank, the pressure spraying device with the liquid spraying hole is arranged at the top of the liquid tank, the liquid taking pipe is connected to the liquid tank and the pressure spraying device respectively, and the baffle for shielding the liquid spraying hole is movably arranged on the pressure spraying device.

[0008] The sand leakage device includes a smoke detector for detecting smoke information during excavation, a sand filling box, a sand leakage hole, and a sand leakage baffle. The sand filling box is arranged at the tail of the excavator body, and the bottom surface of the sand filling box is provided with the sand leakage hole. The sand leakage baffle is movably connected to the bottom of the sand filling box to cover or open the sand leakage hole.

[0009] In a preferred embodiment of the present invention, the excavator body includes a cab, a base, a boom, a dipper arm, a bucket, and bucket teeth. The cab is located on the upper part of the base, the boom is connected to the base and the dipper arm respectively, the end of the dipper arm is connected to the bucket, and the bucket is provided with the bucket teeth.

[0010] In a preferred embodiment of the present invention, the excavator control component includes an analog-to-digital converter, a main controller, a solenoid valve, and a switch for opening and closing a sand leakage device. The analog-to-digital converter is electrically connected to the main controller to convert an analog signal into a digital signal. The main controller outputs a switch control signal according to the digital signal, and the solenoid valve switches the liquid spraying device according to the switch signal of the main controller.

[0011] In a preferred embodiment of the present invention, the water level sensor is a immersion type water level sensor, and the immersion type water level sensor is located on the inner wall of the liquid tank.

[0012] In a preferred embodiment of the present invention, the liquid tank is snapped into a groove of the head of the excavator body.

[0013] In a preferred embodiment of the present invention, the pressure spraying device includes a pressurizing device, and the pressurizing device includes a pump and a vacuum pressurizing device.

[0014] In a preferred embodiment of the present invention, the temperature sensor is disposed on a liquid tank located directly in front of the cab.

[0015] In a preferred embodiment of the present invention, the baffle is located outside the liquid spraying hole, and the baffle is rotatably arranged on the spraying device.

[0016] In a preferred embodiment of the present invention, the smoke detector is provided at the boom or at the connection between the boom and the bucket.

[0017] In a preferred embodiment of the present invention, the sand leakage baffle can be rotatably arranged at the bottom of the sand loading box.

[0018] The beneficial effects of the present invention are: reducing the excavation cost of yellow phosphorus soil, improving excavation efficiency, reducing the generation of toxic and harmful substances, and improving the safety of excavation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0020] Figure 1 It is a structural schematic diagram of a preferred embodiment of an environmentally friendly excavation device for soil containing yellow phosphorus according to the present invention. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1 , the embodiment of the present invention includes:

[0023] An environmentally friendly excavation device for soil containing yellow phosphorus is provided. An infrared temperature sensor, a smoke detector, a control system, a liquid spraying device, and a sand leakage device are installed on the excavator. The liquid spraying device controls the soil temperature, and the sand leakage device can prevent the yellow phosphorus from burning, thereby solving the safety problem when excavating soil containing yellow phosphorus. When performing soil remediation, the device can reduce the cost of excavating yellow phosphorus soil, improve excavation efficiency, reduce the generation of toxic and harmful substances, improve safety, and form a complete and effective excavation device for production.

[0024] The invention discloses an environmentally friendly excavation device for soil containing yellow phosphorus, which comprises four parts in total: an excavator body, an excavator control component, a liquid spraying device and a sand leakage device.

[0025] (1) Excavator body

[0026] The excavator body can adopt the existing excavator structure, and its structure mainly includes a cab 6, a base 7, a cylinder 8, a boom 9, a dipper rod 10, a bucket 11, and bucket teeth 12. The cab is located on the upper part of the base, and the cylinder drives the excavator bucket to perform normal excavation operations; the boom is connected to the base and the dipper rod respectively, and the end of the dipper rod is connected to the bucket, and the bucket is provided with the bucket teeth.

[0027] (2) Excavator control components

[0028] The excavator control component 1 includes an analog-to-digital converter 2, a main controller 3, a solenoid valve 4, and a switch 5. The excavator control component is arranged in the cab of the excavator body. The analog-to-digital converter converts the analog signal of the sensor into a digital signal; the main controller obtains the temperature value according to the digital signal processing and compares it with the preset temperature value, and outputs a switch control signal; the solenoid valve receives the switch signal of the main controller to switch the liquid spraying device; the switch 5 is controlled manually or automatically by the main controller to open and close the sand leakage device.

[0029] (3) Liquid spraying device

[0030] The liquid spraying device comprises an infrared temperature sensor 13 , a groove 15 , a liquid box 16 , a drop-in water level sensor 17 , a liquid taking pipe 18 , a pressure spraying device 19 , a liquid spraying hole 20 , and a baffle 21 .

[0031] The liquid tank is snapped into the groove on the front side of the cab. Clean water or a calcium hypochlorite oxidation solution of a specific concentration can be added to the liquid tank as required. The immersion water level sensor is arranged on the inner wall of the liquid tank. When the water level in the liquid tank is too low, the water level sensor alarms to remind you to add liquid in time.

[0032] The spraying device is arranged on the top of the liquid tank, and the liquid taking pipe for extracting water / calcium hypochlorite solution in the liquid tank is connected to the liquid tank and the pressure spraying device respectively. A liquid spraying hole is arranged outside the pressure spraying device, wherein the pressure spraying device can adopt a pressurizing device such as a pump and a vacuum pressurizing device.

[0033] The baffle is movably provided on the spraying device and is located outside the liquid spraying hole. When the liquid spraying hole stops spraying water / calcium hypochlorite solution, the baffle falls down at the same time and blocks the liquid spraying hole to prevent the raised soil from clogging the liquid spraying hole, thereby extending the service life of the liquid spraying equipment.

[0034] The infrared temperature sensor 13 is arranged on the liquid tank located in front of the cab, and is used to monitor the excavation surface. The infrared temperature sensor can set the temperature range. When the real-time temperature detected by the infrared temperature sensor exceeds the set value, the main controller starts the spraying device through the electromagnetic valve to cool down and oxidize.

[0035] (4) Sand leakage device

[0036] The sand leakage device is arranged at the tail of the excavator, and its structure includes a smoke detector 14, a sand filling box 22, a sand leakage hole 23, and a sand leakage baffle 24.

[0037] The smoke detector 14 is arranged at the dipper arm or at the connection between the dipper arm and the bucket, and the smoke detector can monitor smoke information in the sand bucket or the external environment. The sand loading box is arranged at the back of the cab or the oil cylinder, and the bottom surface of the sand loading box is provided with the sand leakage hole, and the sand leakage baffle is movably connected to the bottom of the sand loading box to cover or open the sand leakage hole, wherein the sand leakage baffle can be rotatably arranged at the bottom of the sand loading box, and the sand leakage baffle can also be detachably arranged at the bottom of the sand loading box.

[0038] When smoke appears or turning on the liquid spraying device still cannot solve the soil smoking problem, turn the excavator body, open the sand leakage baffle, and fine sand will flow out from the sand leakage hole. The fine sand will cover the mud after the water spraying to prevent the yellow phosphorus soil from burning in the air.

[0039] The implementation steps of an environmentally friendly excavation device for soil containing yellow phosphorus include:

[0040] Before excavation, the contaminated area must be detected and hidden dangers eliminated to ensure that the excavation meets the safety production requirements before excavation. When excavating contaminated areas that may contain phosphorus, the excavation slope should be appropriately slowed down. When yellow phosphorus is found, mechanical equipment should be used for excavation, and construction personnel should stay away from the excavation work surface as much as possible. An environmentally friendly excavation device for soil containing yellow phosphorus is used to excavate the soil first. The infrared temperature sensor on the excavator can sense the temperature of the excavated soil. When the temperature exceeds the temperature range, water / calcium hypochlorite solution will be automatically sprayed, and water / calcium hypochlorite solution will be stopped when it is lower than the temperature range. The sand leakage device is used as an emergency device. When the liquid spraying device is turned on, if the smoke detector detects smoke, the sand leakage device will be automatically started to cover the smoke exposed surface to prevent the yellow phosphorus soil from burning in the air. When the water level in the liquid tank is too low, the immersion water level sensor will alarm to remind you to add water in time.

[0041] The beneficial effects of the environmentally friendly excavation device for soil containing yellow phosphorus of the present invention are:

[0042] 1. In terms of method, an environmentally friendly excavation equipment for soil containing yellow phosphorus is proposed. This method is simple and easy to use, can be directly referenced, and is widely used in the excavation of soil containing yellow phosphorus.

[0043] 2. The equipment operates safely and energy-savingly. The water spray system is automatically switched on and off according to the temperature to keep the soil at a low temperature to avoid the production of highly toxic by-products. At the same time, covering with fine sand can prevent the combustion of yellow phosphorus and avoid safety accidents such as smoke and explosion.

[0044] 3. The equipment adopts a multi-component assembly method, which is convenient for disassembly and transportation. The equipment can meet the needs of both soil excavation and excavation of soil containing yellow phosphorus.

[0045] 4. In terms of intelligence, infrared temperature sensors and smoke detectors are used to automatically start the liquid spraying device and sand leakage device, which responds quickly, ensures clear construction, and makes the equipment more intelligent.

[0046] The above descriptions are merely 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 specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An environmentally friendly excavation device for soil containing yellow phosphorus, It is characterized in that include: An excavator body, an excavator control device, a liquid spraying device, and a sand leakage device. The excavator control device is connected to the liquid spraying device and the sand leakage device. The excavator body includes a cab, a base, a boom, a dipper, a bucket, and bucket teeth. The cab is located on the upper part of the base. The boom is connected to the base and the dipper respectively. The end of the dipper is connected to the bucket, and the bucket is provided with the bucket teeth. The liquid spraying device includes a temperature sensor for detecting temperature during excavation, a liquid tank, a water level sensor, a liquid taking pipe, a pressure spraying device, a liquid spraying hole, and a baffle. The liquid tank is arranged at the head of the excavator body, the water level sensor is arranged in the liquid tank, the pressure spraying device with the liquid spraying hole is arranged at the top of the liquid tank, the liquid taking pipe is connected to the liquid tank and the pressure spraying device respectively, and the baffle for shielding the liquid spraying hole is movably arranged on the pressure spraying device. The sand leakage device includes a smoke detector for detecting smoke information during excavation, a sand box, a sand leakage hole, and a sand leakage baffle. The sand box is arranged at the tail of the excavator body, the bottom surface of the sand box is provided with the sand leakage hole, and the sand leakage baffle is movably connected to the bottom of the sand box to cover or open the sand leakage hole. The water level sensor adopts a immersion water level sensor, which is located at the bottom of the liquid tank. The liquid tank is snapped into the groove of the head of the excavator body. The pressure injection device includes a pressurizing device, which includes a pump and a vacuum pressurizing device. The temperature sensor is arranged on the liquid tank directly in front of the cab. The baffle is located on the outside of the liquid spraying hole. The baffle can be rotatably arranged on the injection device. The smoke detector is arranged on the bucket arm or at the connection between the bucket arm and the bucket. The sand leakage baffle can be rotatably arranged at the bottom of the sand filling box.

2. The environmentally friendly excavation device for soil containing yellow phosphorus according to claim 1, It is characterized in that The excavator control components include an analog-to-digital converter, a main controller, a solenoid valve, and a switch for opening and closing a sand leakage device. The analog-to-digital converter is electrically connected to the main controller to convert an analog signal into a digital signal. The main controller outputs a switch control signal according to the digital signal, and the solenoid valve switches the liquid spraying device according to the switch signal of the main controller.

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