Snow melting salt solution spraying device and method for roads

Abstract

The invention relates to the technical field of road snow melting, and particularly discloses a snow melting salt solution spraying device and method.The snow melting salt solution spraying device comprises a box, a tank, a lifting mechanism and a spraying mechanism, the tank, the lifting mechanism and the spraying mechanism are placed in the box, the spraying mechanism and the lifting mechanism are detachably fixed, and the end, close to the lifting mechanism, of the bottom of the box is open; the spraying mechanism is connected with a hose, one end of the hose is connected with a conveying pipe, one end, close to the hose, of the conveying pipe is provided with a water spraying valve, one end of the conveying pipe is provided with a water return valve and communicated with a water return port of the tank body, and the conveying pipe between the water spraying valve and the water return valve is connected with a branch pipe. A water pump and a water outlet valve are arranged on the branch pipe; and a salt solution is contained in the tank body. The invention aims to solve the problems that the existing snow-melting agent spraying equipment needs to be matched with multiple persons for feeding and is easy to block, the snow-melting agent is covered on the ice surface and is easy to be brought to the roadside by a vehicle, and the ideal snow-melting and deicing effect cannot be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of highway snow melting, and in particular to a snow melting salt solution spreading device and method for highways. Background Art

[0002] With the continuous expansion of the national highway network, the rapid increase in the mileage of highways in mountainous areas has brought more convenience to travel. However, along with the operation of highways, the climate also brings some safety hazards to road operation. Most southern provinces belong to the subtropical humid monsoon climate zone with high environmental humidity, especially on highways in mountainous areas. Even without rainfall, the humidity can reach more than 60%. When entering winter and spring, in a low temperature and high humidity environment, road icing becomes the main factor hindering normal traffic. At present, snow melting and ice removal technologies mainly include artificial methods, mechanical snow removal, spreading snow melting agents, adding chlorides to pavement structure materials, and thermal snow melting technology. Spreading snow melting agents is widely used due to its low cost, ease of use and high deicing efficiency.

[0003] Snowmelt is usually in the form of particles of varying sizes. Larger particles will slow down the melting speed, so they need to be crushed before spraying. Snowmelt is basically contained in woven bags, and when used, it requires the cooperation of multiple people to spray the snowmelt manually or mechanically. When the snowmelt is sprayed mechanically, the discharge port is easily blocked due to the different sizes of the snowmelt particles. Secondly, after the snowmelt is spread, the snowmelt is usually covered on the surface of the ice and is easily scraped to the side of the road by a large number of moving vehicles, which does not achieve the ideal snow melting and ice removal effect. Summary of the invention

[0004] In view of the shortcomings of the prior art, the technical problem solved by the present invention is to provide a snow-melting salt solution spreading device and method for roads, so as to solve the problems that the existing snow-melting agent spreading equipment requires multiple people to cooperate in loading, is prone to clogging, and the snow-melting agent is usually covered on the ice surface and is easily brought to the roadside by vehicles, failing to achieve the ideal snow-melting and ice-removing effect.

[0005] In order to solve the above problems, the technical solution adopted by the present invention is: a snow-melting salt solution spreading device for roads, comprising a box body, and a tank body, a lifting mechanism and a spraying mechanism placed in the box body, the spraying mechanism and the lifting mechanism are detachably fixed, the bottom of the box body is open at one end close to the lifting mechanism, the lifting mechanism controls the spraying mechanism to rise or fall at the opening, the spraying mechanism is connected to a hose, one end of the hose is connected to a transmission pipe, and the end of the transmission pipe close to the hose is provided with a water spray valve, one end of the transmission pipe is provided with a return valve and is connected to the return water port of the tank body, the transmission pipe between the water spray valve and the return valve is connected to a branch pipe, a water pump and a water outlet valve are provided on the branch pipe, and the other end of the water pump is connected to the water outlet of the tank body; the tank body is filled with salt solution.

[0006] The beneficial effects of this program are:

[0007] The original solid particle spreading process of deicing salt is adjusted to uniform spreading of salt solution to ensure that the salt solution adheres evenly to the road surface, effectively avoiding the conventional deicing salt and granular deicing agent being scraped to the roadside by moving vehicles in large quantities and failing to achieve the ideal deicing and snow melting effect.

[0008] This equipment uses a lifting mechanism in conjunction with a spraying mechanism. The distance between the spraying mechanism and the ground is adjusted by the lifting mechanism, so that the spraying range can be controlled. Secondly, when the spraying operation is not in progress, the lifting mechanism can drive the spraying mechanism to move upward and store the spraying mechanism, thereby reducing the equipment footprint.

[0009] This equipment can complete the salt solution proportioning replenishment and on-site spreading operation in a short time. At the same time, it solves the problems of industrial salt jamming and slow material replenishment when the existing equipment is spreading. Compared with the traditional granular snow-melting agent or snow-melting salt spreading process, the salt solution replenishment of this equipment can be completed within 15 minutes. The traditional snow-melting salt spreading equipment needs to carry industrial salt and load materials, which takes 50 minutes to complete; this solution greatly shortens the operation preparation time; at the same operating speed, the original snow-melting salt spreading equipment spreads 0.5 tons of salt / kilometer, and the new salt solution spreading equipment consumes 0.06 tons of snow-melting salt / kilometer, which can save 0.44 tons of snow-melting salt per kilometer compared with the traditional spreading equipment. The salt consumption per kilometer has been reduced by more than 80%, and the negative impact on highway structures and the surrounding environment has been greatly reduced, with good environmental benefits.

[0010] Furthermore, the spraying mechanism includes a spraying main pipe arranged in the middle and spraying branches located on both sides, the spraying branch pipe and the spraying main pipe are both provided with multiple nozzles, the spraying branch pipe and the spraying main pipe are both arranged horizontally and located in the same straight line, rotating joints are provided at both ends of the spraying main pipe, and the spraying branch pipe is hinged to the spraying main pipe through the rotating joint; the lifting mechanism includes a main lifting rod, a secondary telescopic rod and a bracket, the main lifting rod is arranged in the vertical direction and one end is connected to the spraying main pipe, and the other end is detachably fixed to the box body, the bracket is fixed on the spraying main pipe, and both ends of the secondary telescopic rod are respectively hinged to the bracket and the spraying branch pipe, and the secondary telescopic rod drives the spraying branch pipe to rotate along the vertical plane.

[0011] The main lifting rod controls the entire spraying mechanism to rise or fall, so that when the spraying operation is not in progress, the spraying mechanism can be moved upward and stored, reducing the footprint of the crossbar equipment. The side auxiliary telescopic rod can be extended and retracted to allow the spraying branch pipe to rotate with the swivel joint as the origin, so that the angle of the auxiliary spraying branch pipe can be adjusted, so that the spraying branch pipe can be tilted upward, so that the spraying distance can be farther and the spraying range can be larger; the spraying range of the spraying mechanism can be dynamically adjusted through the auxiliary telescopic rod. The spraying main pipe is connected to the spraying branch pipe through the swivel joint connection, so that the salt solution in the spraying main pipe can flow smoothly into the spraying branch pipe.

[0012] Furthermore, the spray pipe is connected to a water inlet pipe parallel to the main lifting rod, and one end of the hose is connected to the water inlet pipe. By additionally providing a water inlet pipe, and then connecting the metal hose and the spray pipe through the water inlet pipe, most of the metal hose and the spray pipe remain in the box when the main lifting rod moves. The metal water inlet pipe has high strength, which enhances the structural stability of the entire spray mechanism.

[0013] Furthermore, the spray branch pipe has a rotation angle range of 0-60°, which can meet the needs of some salt solution spraying operations.

[0014] Furthermore, the tank body is provided with limiting brackets around it, and the tank body is fixed in the limiting brackets. By providing the limiting brackets, the tank body is fixed in the box body to ensure the stability of the tank body during transportation.

[0015] Furthermore, the transmission pipe and the spray pipe are both lined with polytetrafluoroethylene pipes. The use of polytetrafluoroethylene lined pipes can resist corrosion from various strong acids, strong alkalis, organic solvents and oxidants. It has extremely high chemical inertness and will not react with most chemicals, thereby ensuring the purity and safety of the fluid during transportation.

[0016] A method for spreading a snow-melting salt solution spreading device for roads according to the application claim, comprising the following steps;

[0017] S100: Obtaining the temperature and humidity of the expressway site according to the observation records;

[0018] S200: Determine the concentration of the salt solution according to the temperature and humidity, obtain the ratio of industrial salt to water, and add water and industrial salt into the tank according to the ratio;

[0019] S300: Open the outlet valve and return valve and close the spray valve, and start the water pump to fully dissolve the industrial salt during the circulation process;

[0020] S400: On-site sampling to test the concentration of the salt solution. If the concentration meets the requirement, proceed to the next step. If not, adjust until the concentration meets the requirement.

[0021] S500: Start the lifting mechanism and lower the spraying mechanism; start the on-site spraying operation of the salt solution according to the predetermined vehicle speed;

[0022] S600: After the operation is completed, return and repeat steps S100-S500; until the salt solution spraying on all anticoagulant highway sections is completed.

[0023] By adopting the spreading process of this scheme, the actual situation of different temperature and humidity and easy freezing sections can be combined to prepare the control plan and operation preparation of the spreading concentration and spreading amount of the current batch of salt solution in advance, and carry out the on-site spreading operation efficiently according to the plan. According to on-site observation, under the condition of minus 2 degrees and humidity of 91%, the anti-freezing guarantee time of salt solution spreading and snow melting agent spreading is more than 5 hours, and there is no obvious difference in the snow melting and ice removal effect between the two; however, the use of salt solution for spreading can complete the solution replenishment in a short time, and it is not easy to be affected by driving and cause uneven spreading.

[0024] The traditional granular deicing agent spreading process has a spreading cost of about 540 yuan / km (half-km); this solution adopts a salt solution spreading process, and the spreading cost is about 127 yuan / km (half-km). The salt solution spreading cost per kilometer is 413 yuan less than the traditional granular deicing agent, accounting for 76% of the cost, which greatly saves the investment cost of anti-freezing and deicing. Taking a certain southern expressway section as an example, the half-width maintenance non-tunnel section mileage is about 707 kilometers. The average annual salt solution spreading investment is 15 days, and the average daily spraying is calculated as one time. The annual anti-freezing and traffic maintenance investment cost can save about 4.38 million yuan.

[0025] Furthermore, in step S500, the predetermined vehicle speed is 10-30 kilometers per hour. By controlling the vehicle speed, the salt solution can be sprayed evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a top view of the spreading device of the present invention.

[0027] Figure 2 It is a schematic diagram of the lifting mechanism and the spraying device of the present invention.

[0028] Figure 3 It is a top view of the connection part between the spray main pipe and the spray branch pipe.

[0029] Figure 4 Flow chart for spreading salt solution. DETAILED DESCRIPTION

[0030] The following is further described in detail through specific implementation methods:

[0031] The figure marks in the drawings of the specification include: box body 1, limit bracket 11, tank body 2, transmission pipe 21, hose 22, water pump 23, water outlet valve 24, return valve 25, water spray valve 26, lifting mechanism 3, main lifting rod 31, auxiliary telescopic rod 32, bracket 33, spraying mechanism 4, spraying main pipe 41, spraying branch pipe 42, rotating joint 43, connecting pipe 44, water inlet main pipe 45, and nozzle 46.

[0032] Embodiment 1 is basically as attached Figure 1As shown: a snow-melting salt solution spreading device for roads, comprising a box body 1, a limit bracket 11 is provided in the box body 1, and a tank body 2, a lifting mechanism 3 and a spraying mechanism 4 are placed in the box body 1, the limit bracket 11 is provided in the box body 1, the tank body 2 and the limit bracket 11 are welded or bolted, the spraying mechanism 4 and the lifting mechanism 3 are detachably fixed, the bottom of the box body 1 is open at one end close to the lifting mechanism 3, the lifting mechanism 3 controls the spraying mechanism 4 to rise or fall at the opening, the spraying mechanism 4 is connected to a hose 22, one end of the hose 22 is connected to a transmission pipe 21, and the end of the transmission pipe 21 close to the hose 22 is provided with a spray valve 26, one end of the transmission pipe 21 is provided with a return valve 25 and is connected to the return water port of the tank body 2, the transmission pipe 21 between the spray valve 26 and the return valve 25 is connected to a branch pipe, a water pump 23 and a water outlet valve 24 are provided on the branch pipe, and the other end of the water pump 23 is connected to the water outlet of the tank body 2; the tank body 2 contains salt solution. The hose 22 is a metal hose 22 .

[0033] like Figure 2 As shown, the spray mechanism 4 includes a spray main pipe 41 disposed in the middle and spray branches 42 disposed on both sides. The spray branches 42 and the spray main pipe 41 are both provided with a plurality of spray heads 46. The spray branches 42 and the spray main pipe 41 are both arranged in the horizontal direction and in the same straight line. Figure 3 As shown, the two ends of the spray main pipe 41 are flange-connected with L-shaped swivel joints 43, and the spray branch pipe 42 is welded with an L-shaped connecting pipe 44, one end of the connecting pipe 44 is flange-connected with one end of the swivel joint 43; the swivel joint 43 allows the spray branch pipe 42 to maintain communication with the spray main pipe 41 while rotating along a vertical plane. The spray main pipe 41 is connected to a water inlet pipe 45 parallel to the main lifting rod 31, and one end of the hose 22 is connected to the water inlet pipe 45. By additionally providing a water inlet pipe 45, and then connecting the water inlet pipe 45 to the metal hose 22 and the spray main pipe 41 respectively, when the main lifting rod 31 of the spray mechanism 4 moves, most of the metal hose 22 and remain in the box 1. The metal water inlet pipe 45 has high strength, which enhances the structural stability of the entire spray mechanism 4. The lifting mechanism 3 includes a main lifting rod 31, a secondary telescopic rod 32 and a bracket 33. The main lifting rod 31 is arranged in the vertical direction and one end is connected to the spray main pipe 41, and the other end is detachably fixed to the box body 1. The bracket 33 is fixed to the spray main pipe 41. The two ends of the secondary telescopic rod 32 are respectively hinged to the bracket 33 and the spray branch pipe 42. The secondary telescopic rod 32 drives the spray branch pipe 42 to rotate along the vertical plane. The rotation angle range of the spray branch pipe 42 is 0-60°.

[0034] The main lifting rod 31 controls the entire spraying mechanism 4 to rise or fall, so that when the spraying operation is not in progress, the spraying mechanism 4 can be moved upward and stored to reduce the footprint of the equipment. The side auxiliary telescopic rod 32 is extended and retracted so that the spraying branch pipe 42 can rotate with the rotary joint 43 as the origin, so that the angle of the auxiliary spraying branch pipe 42 can be adjusted, so that the spraying branch pipe 42 is tilted upward, so that the spraying distance is farther and the spraying range is larger; the spraying range of the spraying mechanism 4 can be dynamically adjusted by the auxiliary telescopic rod 32. The spraying main pipe 41 is connected to the spraying branch pipe 42 through the rotary joint 43, so that the salt solution in the spraying main pipe 41 can flow smoothly into the spraying branch pipe 42.

[0035] The transmission pipe 21 and the spraying mechanism 4 are both lined with polytetrafluoroethylene pipes. The use of polytetrafluoroethylene lined pipes can resist corrosion from various strong acids, strong bases, organic solvents and oxidants. It is highly chemically inert and will not react with most chemicals, thereby ensuring the purity and safety of the fluid during transportation.

[0036] like Figure 4 As shown, a method for spreading a snow-melting salt solution spreading device for roads using the claimed invention comprises the following steps;

[0037] S100: Obtaining the temperature and humidity of the expressway site according to the observation records;

[0038] S200: Determine the concentration of the salt solution according to the temperature and humidity, obtain the ratio of industrial salt to water, and add water and industrial salt into the tank according to the ratio;

[0039] S300: Open the outlet valve and return valve and close the spray valve, and start the water pump to fully dissolve the industrial salt during the circulation process;

[0040] S400: On-site sampling to test the concentration of the salt solution. If the concentration meets the requirement, proceed to the next step. If not, adjust until the concentration meets the requirement.

[0041] S500: Start the lifting mechanism and lower the spraying mechanism; start the on-site spreading operation of the salt solution at a predetermined vehicle speed; the predetermined vehicle speed is 50-60 kilometers per hour, and the preferred vehicle speed is 50 kilometers per hour.

[0042] S600: After the operation is completed, return and repeat steps S100-S500; until the salt solution spraying on all anticoagulant highway sections is completed.

[0043] The original solid particle spreading process of deicing salt is adjusted to uniform spreading of salt solution to ensure that the salt solution adheres evenly to the road surface, effectively avoiding the conventional deicing salt and granular deicing agent being scraped to the roadside by moving vehicles in large quantities and failing to achieve the ideal deicing and snow melting effect.

[0044] This process and equipment can complete the salt solution proportioning replenishment and on-site spreading operations in a short time. At the same time, it solves the problems of industrial salt jamming and slow material replenishment when the existing equipment is spreading. Compared with the traditional granular deicing agent or deicing salt spreading process, the salt solution replenishment of this scheme can be completed within 15 minutes. The traditional deicing salt spreading equipment needs to carry industrial salt and load materials, which takes 50 minutes to complete; this scheme greatly shortens the operation preparation time; at the same operating speed, the original deicing salt spreading equipment spreads 0.5 tons of salt / kilometer, and the new salt solution spreading equipment consumes 0.06 tons of deicing salt / kilometer, which can save 0.44 tons of deicing salt per kilometer compared with the traditional spreading equipment. The salt consumption per kilometer has been reduced by more than 80%, and the negative impact on highway structures and the surrounding environment has been greatly reduced, with good environmental benefits.

[0045] By adopting the spreading process of this scheme, the actual situation of different temperature and humidity and easy freezing sections can be combined to prepare the control plan and operation preparation of the spreading concentration and spreading amount of the current batch of salt solution in advance, and carry out the on-site spreading operation efficiently according to the plan. According to on-site observation, under the condition of minus 2 degrees and humidity of 91%, the anti-freezing guarantee time of salt solution spreading and snow melting agent spreading is more than 5 hours, and there is no obvious difference in the snow melting and ice removal effect between the two; however, the use of salt solution for spreading can complete the solution replenishment in a short time, and it is not easy to be affected by driving and cause uneven spreading.

[0046] The traditional granular deicing agent spreading process has a spreading cost of about 540 yuan / km (half-km); this solution adopts a salt solution spreading process, and the spreading cost is about 127 yuan / km (half-km). The salt solution spreading cost per kilometer is 413 yuan less than the traditional granular deicing agent, accounting for 76% of the cost, which greatly saves the investment cost of anti-freezing and deicing. Taking a certain southern expressway section as an example, the half-width maintenance non-tunnel section mileage is about 707 kilometers. The average annual salt solution spreading investment is 15 days, and the average daily spraying is calculated as one time. The annual anti-freezing and traffic maintenance investment cost can save about 4.38 million yuan.

[0047] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A snow-melting salt solution spreading device for roads, characterized in that: The invention comprises a box body, a tank body, a lifting mechanism and a spraying mechanism placed in the box body, wherein the spraying mechanism and the lifting mechanism are detachably fixed, an opening is provided at one end of the bottom of the box body near the lifting mechanism, and the lifting mechanism controls the spraying mechanism to rise or fall at the opening, the spraying mechanism is connected with a hose, one end of the hose is connected with a transmission pipe, and an end of the transmission pipe near the hose is provided with a water spray valve, one end of the transmission pipe is provided with a return valve and is connected with a return water port of the tank body, a branch pipe is connected with the transmission pipe between the water spray valve and the return valve, a water pump and a water outlet valve are provided on the branch pipe, and the other end of the water pump is connected with the water outlet of the tank body; the tank body contains a salt solution.

2. The snow-melting salt solution spreading device for roads according to claim 1, characterized in that: The spraying mechanism includes a spraying main pipe arranged in the middle and spraying branches located on both sides. The spraying branches and the spraying main pipe are both provided with multiple nozzles. The spraying branches and the spraying main pipe are both arranged horizontally and located in the same straight line. Rotating joints are provided at both ends of the spraying main pipe, and the spraying branches are hinged to the spraying main pipe through the rotating joints; the lifting mechanism includes a main lifting rod, a secondary telescopic rod and a bracket. The main lifting rod is arranged in the vertical direction and one end is connected to the spraying main pipe, and the other end is detachably fixed to the box body. The bracket is fixed on the spraying main pipe, and both ends of the secondary telescopic rod are respectively hinged to the bracket and the spraying branch pipe, and the secondary telescopic rod drives the spraying branch pipe to rotate along the vertical plane.

3. The snow-melting salt solution spreading device for roads according to claim 2, characterized in that: The spray main pipe is connected with a water inlet main pipe parallel to the main lifting rod, and one end of the hose is communicated with the water inlet main pipe.

4. The snow-melting salt solution spreading device for roads according to claim 2, characterized in that: The rotation angle range of the spray branch pipe is 0-60°.

5. The snow-melting salt solution spreading device for roads according to claim 1, characterized in that: The tank body is provided with limiting brackets around it, and the tank body can be detachably fixed in the limiting brackets.

6. The snow-melting salt solution spreading device for roads according to claim 1, characterized in that: The transmission pipe and the spray pipe are both lined with polytetrafluoroethylene pipes.

7. A method for spreading a snow-melting salt solution for roads using the snow-melting salt solution spreading device according to any one of claims 1 to 6, characterized in that: The steps include: S100: obtaining the on-site temperature of the expressway according to the observation records; S200: Determine the concentration of the salt solution according to the temperature and humidity, obtain the ratio of industrial salt to water, and add water and industrial salt into the tank according to the ratio; S300: Open the outlet valve and return valve and close the spray valve, and start the water pump to fully dissolve the industrial salt during the circulation process; S400: On-site sampling to test the concentration of the salt solution. If the concentration meets the requirement, proceed to the next step. If not, adjust until the concentration meets the requirement. S500: Start the lifting mechanism and lower the spraying mechanism; start the on-site spraying operation of the salt solution according to the predetermined vehicle speed; S600: After the operation is completed, return and repeat steps S100-S500; until the salt solution spraying on all anticoagulant highway sections is completed.

8. The method for spreading a snow-melting salt solution for roads according to claim 7, characterized in that: In step S500, the predetermined vehicle speed is 45-65 kilometers per hour.

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