CN105107257B - Snow-melting agent recovering device used for roads and bridges - Google Patents

Abstract

The invention discloses a snow-melting agent recovering device used for roads and bridges. The snow-melting agent recovering device is mainly composed of a controller, a snow-melting agent recovering and filtering device, a distilling and purifying device, a blast drying device and a snow-melting agent storing device. An original rainwater pipeline of a road is used as a snow-melting agent recovering pipeline, snow-melting agent recovering devices are arranged at the interval of 500-1000 m, and a snow-melting agent enters the distilling and purifying device after being recovered and filtered to be treated further and converged to the snow-melting agent storing device to be stored for standby use. The snow-melting agent recovering device integrates snow-melting agent recovering, filtering, distilling and purifying, blast drying, storing, reusing and other elements, the snow-melting agent can be recycled to be brought into maximum play, and sustainable development is achieved really.

Description

A deicing agent recovery device for roads and bridges

technical field

The invention belongs to the technical field of snow melting and deicing for urban roads, airport roads and highways, and in particular relates to a snow melting agent recovery device for urban roads, highways and bridges.

Background technique

Highways, urban roads and airport roads in most parts of my country will be affected by ice and snow in winter. The snow and ice on the road not only leads to traffic interruption, but also easily leads to traffic accidents, resulting in serious economic and loss of life and property. At present, the most widely used snow melting and deicing method in the world is to spread deicing agents. According to incomplete statistics, about 30 million tons of deicing agents are used in the world every year, most of which are mainly composed of chloride salts. The trend is gradually increasing. The large-scale use of chlorine salt deicing agents not only improves the efficiency of snow melting and deicing, but also causes serious damage to engineering structures and the surrounding environment. This problem has attracted more and more attention from all over the world. In recent years, environmentally friendly deicing agents represented by CMA have also been widely used in important road sections such as airports and bridges. This deicing agent has little impact on engineering structures, and the final product of its decomposition is also environmentally friendly, but the cost is high , about 10-15 times that of traditional chlorine salt deicing agents, and its popularization and application is limited. Therefore, how to recycle the deicing agent after use is of great significance. After the common deicing agents are used, they are integrated into the ice and snow melting water, which only shows a decrease in concentration and an increase in impurities, but their properties have not changed. Recycling of chlorine salt deicing agents that seriously pollute the environment can reduce their impact on the surrounding environment. pollution, which has good social and environmental benefits; recycling the expensive environmentally friendly deicing agent and realizing its recycling can save resources and reduce costs, and has good economic benefits.

Contents of the invention

In order to solve the above technical problems, the present invention provides a deicing agent recovery device for roads and bridges, which recycles and processes the deicing agent, so as to save resources, reduce costs and protect the environment.

The device includes a control room, a deicing agent recovery and filtering device, a distillation purification device, a deicing agent storage device, etc. The snow melting agent recovery device pipeline uses road rainwater pipelines, and a set of recovery and filtration devices are installed every 500m-1000m, which can filter the collected recovery liquid, and then transport the filtered recovery liquid to the distillation purification device with a delivery pump, and the distillation purification device It should be equipped with a deicing agent concentration detection device, and the recovered liquid should be distilled and purified, and then sent to the deicing agent storage tank by the delivery pump.

Features and beneficial effects of the present invention are:

(1) By recycling the snow melting agent, the recycling of the snow melting agent is realized, the cost is reduced, resources are saved, and it meets the requirements of sustainable development.

(2) Recycling the deicing agent to avoid its direct discharge can greatly reduce its pollution to engineering structures and the surrounding environment.

(3) The present invention integrates several major elements such as snow melting agent recovery, filtration, distillation purification, storage and reuse, etc., realizes the recycling of snow melting agent, makes it play the greatest role, and truly realizes sustainable development.

Description of drawings

Figure 1 is a schematic diagram of the overall layout of the deicing agent recovery and utilization device for highway bridges.

Fig. 2 is a schematic diagram of the deicing agent recovery system.

Figure 3 is a schematic diagram of the working logic of the control room.

detailed description

The principle structure and working process of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Including the snowmelting agent recovery pipeline 1, the snowmelting agent recovery pipeline 1 is connected with a recovery filter device 2 every 500-1000m pipeline 4, and the recovery filter device 2 pipeline is connected in parallel with a drying device 11 and a distillation purification device 8, and the distillation purification A storage tank 10 is connected to the device 8; a first valve 3 is provided between the deicing agent recovery pipeline 1 and the recovery filter device 2, and a second valve 3 is provided between the recovery filter device and the drying device and the distillation purification device. Valve 6, the third valve 7; the first delivery pump 5 is arranged between the recovery filter device 2 and the parallel pipeline, the second delivery pump 9 is arranged between the distillation purification device 8 and the storage tank 10; the first The valve 3 , the second valve 6 , the third valve 7 , the first delivery pump 5 and the second delivery pump 9 are respectively connected to the signal circuit of the control room 12 .

According to the type of snow-melting agent, the device has the following two recycling methods: when spraying liquid snow-melting agent, use the mobile APP to connect to the control room 12, control the opening of the first valve 3 and the second valve 6, and the used snow-melting agent can pass through The recovery pipeline 1 is connected to the recovery filter device 2. After the filtered liquid level reaches a certain height, the liquid level sensor receives the signal and transmits the signal to the control room 12. The first delivery pump 5 starts to pump the deicing agent to the distillation unit. Purification device 8, the distillation purification device has an automatic detection system for concentration and quality. After the detection is qualified, the signal is transmitted to the control room 12, and the second delivery pump 9 is started to pump the deicing agent to the storage tank 10 for storage; when spraying the solid deicing agent When using the mobile phone APP to connect to the control room 12, control the opening of the first valve 3 and the third valve 7, the used deicing agent can be collected into the recovery filter device 2 through the recovery pipeline 1, and after the filtered liquid level reaches a certain height, The liquid level sensor receives the signal and transmits the signal to the control room 12, the first delivery pump 5 is started, and the filtered deicing agent is pumped to the blast drying device 11, and the blasting drying device 11 can evaporate the deicing agent Crystallized and automatically recovered for recycling.

Claims (4)

1. A deicing agent recovery device for roads and bridges, including a deicing agent recovery pipeline (1), characterized in that the deicing agent recovery pipeline (1) is connected with a recovery filter every 500-1000m pipeline (4) device (2), the recovery and filtration device (2) is connected in parallel with a blower drying device (11) and a distillation purification device (8), and the distillation purification device (8) is connected with a storage tank (10); Between the deicing agent recovery pipeline (1) and the recovery filter device (2), there is a first valve (3), the recovery filter device (2), the blast drying device (11), and the distillation purification device (8). The second valve (6) and the third valve (7) are arranged respectively; the first delivery pump (5) is arranged between the recovery filter device (2) and the parallel pipeline, and the distillation purification device (8) and the storage There is a second delivery pump (9) between the tanks (10); the first valve (3), the second valve (6), the third valve (7) and the first delivery pump (5), the second delivery pump The pumps (9) are respectively connected to the signal circuit of the control room (12). 2. A deicing agent recovery device for highways and bridges according to claim 1, characterized in that: the deicing agent recovery pipe (1) is a road drainage pipe. 3. A deicing agent recovery device for highways and bridges according to claim 1, characterized in that: the control room (12) is controlled by mobile phone APP signals. 4. A snow-melting agent recovery device for roads and bridges according to claim 3, characterized in that: the APP signal of the mobile phone is controlled as follows: the first valve (3) is in the closed state, and after spraying the liquid snow-melting agent, it is controlled by the mobile phone The APP is connected to the control room (12), and the control room (12) controls the opening of the first valve (3) and the second valve (6), and the recycling and filtering device (2) filters the deicing agent, and the filtered deicing agent is conveyed through the first The pump (5) is pumped to the distillation and purification device (8), and the deicing agent treated by the distillation and purification device (8) is pumped to the storage tank (10) by the second delivery pump (9) for storage; after spraying the solid deicing agent , control the opening of the first valve (3) and the third valve (7), the recovery filter device (2) filters the deicing agent, and the filtered deicing agent is pumped to the blower drying device by the first delivery pump (5) (11).