Fly ash deicing agent and dry spray deicing agent spreading device

Abstract

The present invention provides a fly ash deicing agent and a dry spray deicing agent spreading device, wherein the deicing agent includes the following components by mass fraction: 50-60% industrial salt and 40-50% fly ash. The dry spray deicing agent spreading device includes: an industrial salt conveying unit, a fly ash conveying unit, an air supply unit and a spray tank; the discharge end of the industrial salt conveying unit is connected to the spray tank for conveying industrial salt into the spray tank; the discharge end of the fly ash conveying unit is connected to the spray tank for conveying fly ash into the spray tank; the air outlet of the air supply unit is connected to the spray tank for supplying air into the spray tank to mix industrial salt and fly ash; an arc nozzle is provided on the spray tank. The deicing agent will not cause soil pollution or dust flying, and is inexpensive; the device can ensure the uniformity of spreading, accelerate the efficiency of snow melting and deicing, have good use effect, and have broad market prospects.

Description

Technical Field

[0001] The invention belongs to the technical field of deicing agents, and in particular relates to a fly ash deicing agent and a dry spray deicing agent spreading device. Background Art

[0002] Daily highway maintenance mainly includes watering to reduce dust, road sweeping and other work. In northern regions, snow often falls in winter. During daily highway maintenance, in order to ensure traffic safety, "snow melting and de-icing" operations are also required. In snow melting and de-icing operations, spreading snow melting agents is a necessary process. In traditional processes, manual spreading or rotary spreaders are often used to spread granular snow melting agents (the main component is industrial salt), using the low freezing point of salt water to melt normal ice and snow.

[0003] However, the traditional process has three major disadvantages:

[0004] First, the snow melting efficiency is low. Since industrial salt needs to be dissolved by a small amount of snow water first, it can diffuse and continue to melt ice and snow, and the speed is slow. Especially in extremely low temperatures, it is more difficult to play a role.

[0005] Second, the operation is rough, the dosage is difficult to control, and the cost is high. The traditional snow-melting agent spreading construction is done by manually spreading with a shovel or using a simple spreader that spreads with a turntable. The operation is very rough, and the actual dosage often exceeds the standard, resulting in a large amount of snow-melting agent with a unit price of about 1,000 yuan / ton wasted, and the cost is high.

[0006] Third, the environmental pollution is serious; due to the second reason, a large amount of melted salt water gathers in the green belts or fields on both sides of the highway, causing serious pollution and leading to serious soil salinization, endangering the growth of greening crops and agricultural crops.

[0007] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Summary of the invention

[0008] The purpose of the present invention is to provide a fly ash deicing agent and a dry spray deicing agent spreading device, so as to at least solve the problems of low deicing efficiency, high cost and serious pollution of the current deicing agents.

[0009] In order to achieve the above object, the present invention provides the following technical solutions:

[0010] A fly ash deicing agent, comprising the following components in mass fractions:

[0011] Industrial salt 50-60% and fly ash 40-50%.

[0012] In the fly ash deicing agent as described above, preferably, the industrial salt is industrial salt powder obtained after fine grinding, and the 45 μm square hole sieve residue of the industrial salt is not more than 12%, and the moisture content is not more than 1%.

[0013] In the fly ash de-icing agent as described above, preferably, the fly ash is Class C fly ash.

[0014] In the fly ash deicing agent as described above, preferably, the mass ratio of the industrial salt to the fly ash is 6:4.

[0015] A dry spray snow melting agent spreading device, the spreading device comprising: an industrial salt conveying unit, a fly ash conveying unit, an air supply unit and a spray tank;

[0016] The discharge end of the industrial salt delivery unit is connected to the spray tank and is used to deliver industrial salt into the spray tank;

[0017] The discharge end of the fly ash conveying unit is connected to the spraying tank and is used to convey the fly ash into the spraying tank;

[0018] The air outlet of the air supply unit is connected to the spray tank and is used to supply air into the spray tank to mix the industrial salt and fly ash;

[0019] The spray tank is provided with an arc-shaped nozzle so that the mixed industrial salt and fly ash can be spread out from the nozzle in a fan-shaped area.

[0020] In the dry spray type deicing agent spreading device as described above, preferably, the industrial salt delivery unit comprises an industrial salt storage tank, a salt delivery pipeline and a first screw pump;

[0021] A first opening is provided on the wall surface of the spray tank, one end of the salt delivery pipeline extends into the industrial salt storage tank, and the other end is connected to the spray tank through the first opening;

[0022] A first screw pump is arranged in the salt transport pipeline in the industrial salt storage tank, and the first screw pump is used to transport industrial salt;

[0023] Preferably, the fly ash conveying unit comprises a fly ash storage tank, a coal conveying pipeline and a second screw pump;

[0024] A second opening is provided on the wall surface of the spray tank, one end of the coal conveying pipeline extends into the fly ash storage tank, and the other end is connected to the spray tank through the second opening;

[0025] A second screw pump is provided in the coal conveying pipeline in the fly ash storage tank, and the second screw pump is used to convey the fly ash;

[0026] More preferably, the area ratio of the cross sections of the salt transport pipeline and the coal transport pipeline is 6:4.

[0027] In the dry spray snow melting agent spreading device as described above, preferably, the air supply unit includes an air compressor and an air supply duct;

[0028] A third opening is arranged on the wall surface of the spray tank, one end of the air supply duct is connected to the air compressor, and the other end is connected to the spray tank through the third opening.

[0029] In the dry spray snow melting agent spreading device as described above, preferably, the spray tank comprises a cover body and a tank body, the upper end of the tank body is provided with a transverse arc-shaped notch, namely, the arc-shaped nozzle, one side edge of the cover body extends outward from the tank body so that the upper part of the arc-shaped notch is blocked by the cover body, the other side edge of the cover body is in contact with the tank body, and the cover body and the tank body are detachably connected at the contact point;

[0030] Preferably, the spray tank comprises a cover body and a tank body, the cover body and the tank body are detachably connected, an arc-shaped slot hole is opened in the upper part of the tank body in the transverse direction, that is, the arc-shaped nozzle, and the height of the arc-shaped slot hole is consistent.

[0031] In the dry spray snow-melting agent spreading device as described above, preferably, the tank body is in a spherical structure, and the longitudinal section of the cover body is in an arc-shaped structure.

[0032] In the dry spray snow melting agent spreading device as described above, preferably, the first opening and the second opening are arranged at the lower part of the tank body, and the third opening is arranged at the upper part of the tank body;

[0033] Preferably, the third opening is arranged at an angle, and the air outlet of the air supply duct faces the tank body.

[0034] Beneficial effects:

[0035] The fly ash de-icing agent of the present invention uses a mixture of industrial salt and fly ash as the de-icing agent. Since the amount of industrial salt used is reduced, and the fly ash contains a variety of inorganic substances necessary for plant growth (especially SiO2, which is known as a long-acting and useful compound fertilizer), it can improve clay soil and other excellent properties, and solves the problem of soil pollution caused by snow melting and de-icing on roads and flowing into the green belts or farmland around the roads with water.

[0036] The new fly ash de-icing agent is inexpensive and reduces costs; the amount of industrial salt used is reduced to about 60% of the original, and because of the addition of Class C fly ash, the price is low, the cost of the same amount of de-icing agent is reduced to 76%, and the comprehensive cost is about 45% of the cost of traditional de-icing agents.

[0037] Snow melting and ice removal often take place in high humidity environments. Industrial salt powder and Class C fly ash are both hygroscopic and will not cause dust pollution problems in the air.

[0038] The dry-spray snow-melting agent spreading device of the present invention has a nozzle of a spray tank arranged in a ring shape, and the mixing is uniform. The spreading range is suitable for lanes with a width of more than 3.5 m. The fully mechanized construction not only speeds up the efficiency of snow melting and de-icing, but also ensures the uniformity of spreading, has good use effect, and has broad market prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. Among them:

[0040] Figure 1 It is a structural schematic diagram of a dry spray snow melting agent spreading device according to an embodiment of the present invention;

[0041] Figure 2 for Figure 1 A top view of

[0042] Figure 3 A side view of a spray tank according to an embodiment of the present invention;

[0043] In the figure: 1. industrial salt storage tank; 2. fly ash storage tank; 3. first screw pump; 4. second screw pump; 5. salt pipeline; 6. coal pipeline; 7. air compressor; 8. air supply pipeline; 9. spray tank; 91. cover; 92. tank body; 10. arc nozzle; 11. first opening; 12. second opening; 13. third opening; 14. bolt. DETAILED DESCRIPTION

[0044] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0045] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0046] An embodiment of the present invention provides a fly ash deicing agent, comprising the following components in mass fractions: 50-60% (e.g., 51%, 52%, 53%, 54%, 55%, 56%, 57%, 58%, 59%) of industrial salt and 40-50% (e.g., 41%, 42%, 43%, 44%, 45%, 46%, 47%, 48%, 49%) of fly ash.

[0047] In a specific embodiment of the present invention, the industrial salt is industrial salt powder obtained after fine grinding, the 45 μm square hole sieve residue of the industrial salt is not more than 12%, and the moisture content is not more than 1%.

[0048] In a specific embodiment of the present invention, the fly ash adopts Class C fly ash that complies with the standard of "Fly Ash for Cement and Concrete" (GB / T1596).

[0049] In a specific embodiment of the present invention, the mass ratio of industrial salt to fly ash is 6:4. Too much industrial salt will increase the cost; too little industrial salt and too much fly ash will affect the dissolution efficiency. When the content of industrial salt is slightly higher than that of fly ash, the cost can be reduced while maintaining a good dissolution effect.

[0050] The new deicing agent of the present invention is made of finely ground industrial salt and Class C fly ash in a ratio of 6:4, and is sprayed evenly on a snow-covered lane with a width of more than 3.5m by high-pressure wind. On the one hand, Class C fly ash has a dark color and a large specific surface area, and is more likely to absorb light and heat and bond with snow and ice; on the other hand, it contains about 4% free calcium oxide (f-CaO), which will react quickly with snow and ice. The free calcium oxide reacts chemically with water to generate calcium hydroxide and releases a large amount of heat. The released heat melts more snow and ice into snow water, promotes the dissolution of industrial salt powder, reduces the freezing point of the solution (a mixed solution of snow water and industrial salt), and melts the snow and ice on the road.

[0051] The present invention also provides a dry spray type deicing agent spreading device, which adopts a special preparation and operates by a "dry spray method". The present invention adopts a new type of spray tank with an arc-shaped nozzle, which can ensure fan-shaped spreading during spraying. The new deicing agent of the present invention can be evenly distributed on at least one lane (i.e., the width reaches 3.5 meters).

[0052] like Figures 1 to 3 As shown, a dry spray snow melting agent spreading device is provided, and the spreading device includes: an industrial salt conveying unit, a fly ash conveying unit, an air supply unit and a spray tank.

[0053] The discharge end of the industrial salt delivery unit is connected to the spray tank 9, and is used to deliver industrial salt into the spray tank 9;

[0054] The discharge end of the fly ash conveying unit is connected to the spraying tank 9, and is used to convey the fly ash into the spraying tank 9;

[0055] The air outlet of the air supply unit is connected to the spray tank 9, and is used to supply air into the spray tank 9 to mix the industrial salt and the fly ash;

[0056] The spray tank 9 is provided with an arc-shaped nozzle 10 so that the mixed industrial salt and fly ash can be spread out from the nozzle in a fan-shaped area.

[0057] In a specific embodiment of the present invention, the industrial salt delivery unit includes an industrial salt storage tank 1, a salt delivery pipeline 5 and a first screw pump 3; a first opening 11 is provided on the wall surface of the spray tank 9, one end of the salt delivery pipeline 5 extends into the industrial salt storage tank 1, and the other end is connected to the spray tank 9 through the first opening 11; a first screw pump 3 is provided in the salt delivery pipeline 5 located in the industrial salt storage tank 1, and the first screw pump 3 is used to transport industrial salt.

[0058] In a specific embodiment of the present invention, the fly ash conveying unit includes a fly ash storage tank 2, a coal conveying pipeline 6 and a second screw pump 4; a second opening 12 is provided on the wall of the spraying tank 9, one end of the coal conveying pipeline 6 extends into the fly ash storage tank 2, and the other end is connected to the spraying tank 9 through the second opening 12; a second screw pump 4 is provided in the coal conveying pipeline 6 located in the fly ash storage tank 2, and the second screw pump 4 is used to convey fly ash.

[0059] The first screw pump 3 and the second screw pump 4 have the same transfer, that is, the flow rate of the conveyed materials is the same, and the area ratio of the cross-section of the salt conveying pipeline 5 and the coal conveying pipeline 6 is 6:4, so that the volume ratio of the industrial salt and the fly ash conveyed to the spray tank 9 can be ensured to be 6:4. The density of the industrial salt and the fly ash can be considered to be the same, so that the mass ratio of the industrial salt and the fly ash input into the spray tank 9 can also be ensured to be 6:4.

[0060] In a specific embodiment of the present invention, the air supply unit includes an air compressor 7 and an air supply pipe 8; a third opening 13 is provided on the wall surface of the spray tank 9, one end of the air supply pipe 8 is connected to the air compressor 7, and the other end is connected to the spray tank 9 through the third opening 13.

[0061] In a specific embodiment of the present invention, the first opening 11 and the second opening 12 are arranged at the lower part of the tank body 92, that is, industrial salt and fly ash enter the tank body 92 from the lower part of the spray tank 9, and the third opening 13 is arranged at the upper part of the tank body 92, that is, compressed air enters from the upper part of the tank body 92.

[0062] Preferably, the third opening 13 is arranged obliquely, and the air outlet of the air supply duct 8 faces the tank body 92 (not shown in the figure). In other embodiments of the present invention, the third opening 13 can also be arranged horizontally, and the air outlet of the air supply duct 8 faces the tank body 92, so that the compressed air can drive the fly ash and industrial salt to rotate in the tank body 92, so that the fly ash and industrial salt are mixed and sprayed out from the nozzle.

[0063] In the specific embodiment of the present invention, the tank body 92 is in a spherical structure, and the longitudinal section of the cover body 91 is in an arc structure. Because the air outlet of the air supply duct 8 faces the inside of the tank body 92, when compressed air is introduced, the compressed air drives the material to rotate inside the spherical tank body 92, and the cover body 91 is also in an arc structure, which is conducive to the rotation and mixing of the material in the tank body 92 under the influence of wind, and is conducive to the uniform mixing of fly ash and industrial salt materials. During the mixing process, the material can be spread out from the nozzle in a fan-shaped manner.

[0064] In a specific embodiment of the present invention, the spray tank 9 includes a cover 91 and a tank body 92. Figure 3 As shown, the upper end of the tank body 92 is provided with a transverse arc-shaped notch, namely, an arc-shaped nozzle 10, and one side edge of the cover body 91 extends outward from the tank body 92 so that the upper part of the arc-shaped notch is blocked by the cover body 91, and the other side edge of the cover body 91 is in contact with the tank body 92, and the cover body 91 and the tank body 92 are detachably connected at the contact point. The upper part of the arc-shaped nozzle 10 is blocked by the cover body 91 to avoid the material from being thrown upward when spraying the material, maintain a better spraying environment, and reduce the problem of environmental pollution caused by flying dust. The height of the arc-shaped notch is consistent, and the projection of the arc-shaped notch in the vertical direction is a rectangle, that is, the light is in the horizontal direction, and the light in the horizontal direction forms a line perpendicular to the center position of the arc-shaped notch for projection. In the embodiment of the present invention, the height of the arc-shaped notch is a, and the size of a can be adjusted according to the amount of spreading.

[0065] In another embodiment of the present invention, the spray tank 9 includes a cover 91 and a tank 92, and the cover 91 and the tank 92 are detachably connected. The upper part of the tank 92 is provided with an arc-shaped slot (not shown in the figure) in the transverse direction, that is, an arc-shaped nozzle 10. The height of the arc-shaped slot is consistent, and the height of the arc-shaped slot is a. The size of a can be adjusted according to the thickness of snow on the road. The larger a is, the more one-time spreading amount. The consistent height of the arc-shaped slot can make the material have better spreading uniformity when it is sprayed out, the consistency of the amount of material within the spreading area is good, and the snow melting and ice removal is more thorough. Preferably, the arc length of the arc-shaped nozzle 10 is one-third of the arc length of the plane circle where the nozzle is located.

[0066] In a specific embodiment of the present invention, the cover body 91 and the tank body 92 are connected by bolts 14 .

[0067] When using the dry spray snow melting agent spreading device of the present invention, follow the following steps:

[0068] First, the salt delivery pipeline 5 and the coal delivery pipeline 6 are installed, and industrial salt and Class C fly ash are added to the industrial salt storage tank 1 and the fly ash storage tank 2 respectively; then the dry spray snow melting agent spreading device is installed on the vehicle, and the vehicle slowly drives on the road where snow melting and de-icing are required, and the first screw pump 3 and the second screw pump 4 are started at the same time. The first screw pump 3 and the second screw pump 4 have the same rotation speed, and industrial salt and Class C fly ash are supplied to the cavity of the spray tank 9 through the salt delivery pipeline 5 and the coal delivery pipeline 6 in a ratio of 6:4. Finally, the air compressor 7 is turned on, and high-pressure air is transported to the cavity of the spray tank 9, with the air outlet facing the tank body 92, mixing the industrial salt powder and Class C fly ash, and blowing them out from the arc nozzle 10 of the spray tank 9, evenly distributed in a fan shape on the snow and ice surface of the road with a width of not less than 3.5m and starting to melt the ice and snow.

[0069] In summary, the fly ash de-icing agent of the present invention uses a mixture of industrial salt and fly ash as the de-icing agent. Since the amount of industrial salt used is reduced, and fly ash contains a variety of inorganic substances necessary for plant growth (especially SiO2, which is known as a long-acting and useful compound fertilizer), it can improve clay soil and other excellent properties, and solves the problem of soil pollution caused by snow melting and de-icing on roads and flowing into the green belts or farmland around the roads with water.

[0070] The new fly ash de-icing agent is inexpensive and reduces costs; the amount of industrial salt used is reduced to about 60% of the original, and because of the addition of Class C fly ash, the price is low, the cost of the same amount of de-icing agent is reduced to 76%, and the comprehensive cost is about 45% of the cost of traditional de-icing agents.

[0071] Snow melting and ice removal often take place in high humidity environments. Industrial salt powder and Class C fly ash are both hygroscopic and will not cause dust pollution problems in the air.

[0072] The dry-spray snow-melting agent spreading device of the present invention has a nozzle of a spray tank arranged in a ring shape, and the mixing is uniform. The spreading range is suitable for lanes with a width of more than 3.5 m. The fully mechanized construction not only speeds up the efficiency of snow melting and de-icing, but also ensures the uniformity of spreading, has good use effect, and has broad market prospects.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dry spray deicing agent spreading device, characterized in that: The spreading device comprises: an industrial salt conveying unit, a fly ash conveying unit, an air supply unit and a spray tank; The discharge end of the industrial salt delivery unit is connected to the spray tank and is used to deliver industrial salt into the spray tank; The discharge end of the fly ash conveying unit is connected to the spraying tank and is used to convey the fly ash into the spraying tank; The air outlet of the air supply unit is connected to the spray tank and is used to supply air into the spray tank to mix the industrial salt and fly ash; The spray tank is provided with an arc-shaped nozzle so that the mixed industrial salt and fly ash can be spread out from the nozzle in a fan-shaped area; The industrial salt delivery unit comprises an industrial salt storage tank, a salt delivery pipeline and a first screw pump; A first opening is provided on the wall surface of the spray tank, one end of the salt delivery pipeline extends into the industrial salt storage tank, and the other end is connected to the spray tank through the first opening; A first screw pump is arranged in the salt transport pipeline in the industrial salt storage tank, and the first screw pump is used to transport industrial salt; The fly ash conveying unit includes a fly ash storage tank, a coal conveying pipeline and a second screw pump; A second opening is provided on the wall surface of the spray tank, one end of the coal conveying pipeline extends into the fly ash storage tank, and the other end is connected to the spray tank through the second opening; A second screw pump is provided in the coal conveying pipeline in the fly ash storage tank, and the second screw pump is used to convey the fly ash; The area ratio of the cross sections of the salt transport pipeline and the coal transport pipeline is 6:

4.

2. The dry spray deicing agent spreading device according to claim 1, characterized in that: The air supply unit includes an air compressor and an air supply duct; A third opening is arranged on the wall surface of the spray tank, one end of the air supply duct is connected to the air compressor, and the other end is connected to the spray tank through the third opening.

3. The dry spray deicing agent spreading device according to claim 2, characterized in that: The spray tank comprises a cover and a tank body, the upper end of the tank body is provided with a transverse arc-shaped notch, namely the arc-shaped nozzle, one side edge of the cover body extends outward from the tank body so that the upper part of the arc-shaped notch is blocked by the cover body, the other side edge of the cover body is fitted with the tank body, and the cover body and the tank body are detachably connected at the fitting position; The spray tank comprises a cover body and a tank body, wherein the cover body and the tank body are detachably connected, and an arc-shaped slot hole is opened in the upper part of the tank body in the transverse direction, namely the arc-shaped nozzle, and the height of the arc-shaped slot hole is consistent.

4. The dry spray deicing agent spreading device according to claim 3, characterized in that: The tank body is in a spherical structure, and the longitudinal section of the cover body is in an arc structure.

5. The dry spray deicing agent spreading device according to claim 3 or 4, characterized in that: The first opening and the second opening are arranged at the lower part of the tank body, and the third opening is arranged at the upper part of the tank body; The third opening is arranged obliquely, and the air outlet of the air supply duct faces the tank body.

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