Condensing device for asphalt production

Abstract

The utility model discloses a condensing device for asphalt production, relates to the technical field of asphalt preparation equipment, and can guarantee the treatment effect on asphalt flue gas to a certain extent. The condensing device for asphalt production comprises a spraying tank, the spraying tank comprises a hollow inner cavity, the top of the spraying tank is provided with a gas outlet, the lower portion of the spraying tank is provided with a gas inlet used for introducing asphalt flue gas, the upper portion of the spraying tank is provided with at least one spraying pipeline, and the spraying pipeline is provided with a spraying nozzle facing the bottom of the spraying tank; a spherical filler layer is also arranged below the spraying pipeline; an adsorption layer is also arranged at the lower part of the spraying tank; the cold water tank is communicated with the inner cavity of the spraying tank, a condenser is further arranged in the cold water tank, and a circulating pump is further connected between the cold water tank and the spraying pipe; wherein the lower portion of the spraying tank is fixedly connected with a first connecting pipe, the cold water tank is connected with a second connecting pipe, the first connecting pipe is communicated with the second connecting pipe, and a filter plate is further arranged between the first connecting pipe and the second connecting pipe.

Description

Technical Field

[0001] This application relates to the technical field of asphalt preparation equipment, and particularly relates to a condensation device for asphalt production. Background Art

[0002] With the increasing development of traffic roads, the demand for asphalt mixture pavement laying is constantly increasing. When asphalt plants produce and manufacture, a large amount of asphalt fumes containing fine tar particles will be generated due to heating. The asphalt fumes contain organic waste gases such as carbon ring hydrocarbons, cycloalkane derivatives and other various compounds, which not only pollute the atmospheric environment, but also endanger the physical health of humans.

[0003] In the existing asphalt fume treatment device disclosed in the prior art, water is injected into the cooling spray tower through the water injection port during the process of treating asphalt fumes. The water flow is synchronously injected into the cold water tank through the through port. When the liquid level gauge detects that the water volume reaches the set height, the water injection stops. The refrigerant in the condenser flows to maintain a low temperature state. When the flue gas needs to be purified, the flue gas enters the bottom of the cooling spray tower from the air inlet. The circulation pump pumps the cold water in the cold water tank into the spray pipeline, and the spray head sprays to adsorb the flue gas. The packing layer can reduce the flow rate of the flue gas, thereby prolonging the contact time and improving the flue gas adsorption effect. The flue gas after spray adsorption enters the backend treatment equipment through the air outlet.

[0004] Regarding the above related technology, the inventor believes that when the asphalt fumes enter the cooling spray tower through the air inlet, after the water mist sprayed by the spray head adsorbs the asphalt fumes, the fine tar particles in the asphalt fumes are suspended in the water tank injected from the cold water tank. Pumping the water to the spray head through the circulation pump will cause the spray head to be blocked, thereby reducing the treatment effect on the asphalt fumes. Utility Model Content

[0005] The embodiment of this application provides a condensation device for asphalt production, which solves the defect that the spray head will be blocked when the water is pumped to the spray head by the circulation pump in the prior art, and realizes ensuring the treatment effect on the asphalt fumes.

[0006] The embodiment of this application provides a condensation device for asphalt production, including:

[0007] A spray tank, including a hollow inner cavity. An air outlet is opened at the top of the spray tank. An air inlet for introducing asphalt fumes is opened at the lower part of the spray tank. At least one spray pipeline is arranged at the upper part of the spray tank. The spray pipeline is provided with spray nozzles facing the bottom of the spray tank. A spherical packing layer is further arranged below the spray pipeline. An adsorption layer is also arranged at the lower part of the spray tank;

[0008] A cold water tank, which is communicated with the inner cavity of the spray tank, and a condenser is also arranged in the cold water tank. A circulation pump is also connected between the cold water tank and the spray pipe;

[0009] Among them, a first connecting pipe is fixedly connected to the lower part of the spray tank, a second connecting pipe is connected to the cold water tank, the first connecting pipe is communicated with the second connecting pipe, and a filter plate is further arranged between the first connecting pipe and the second connecting pipe.

[0010] By adopting the above technical solution, the asphalt fume to be treated is introduced into the spray tank through the air inlet. After the asphalt fume enters the spray tank, it is cooled by the cold water stored in the lower part of the spray tank. At the same time, the particulate impurities in the asphalt fume are suspended in the cold water in the lower part of the spray tank. When the asphalt fume passes through the spherical packing layer, it is further treated by the water mist sprayed by the spray nozzles. The cold water in the cold water tank exchanges heat with the refrigerating medium in the condenser to ensure that the cold water in the spray tank and the cold water tank remains at a relatively low temperature. The solid impurities in the cold water in the spray tank are fixed by the adsorption layer and the filter plate through the first connecting pipe, thereby reducing the probability of blocking the spray nozzles by the circulating pump, and further ensuring the treatment effect on the asphalt fume.

[0011] In a possible implementation manner, a locking valve is further arranged on the first connecting pipe.

[0012] By adopting the above technical solution, the locking valve can block the cold water in the first connecting pipe, thereby facilitating the replacement of the filter plate with reduced filtering performance.

[0013] In a possible implementation manner, the condenser is horizontally arranged, and the height of the water inlet of the condenser is lower than the height of the water outlet.

[0014] By adopting the above technical solution, setting the water inlet of the condenser on the side lower than the water outlet can ensure that the refrigerating medium in the condenser is in full contact with the cold water placed in the cold water tank, and further improve the effect of heat exchange between the cold water in the cold water tank and the condenser.

[0015] In a possible implementation manner, a support frame is fixedly connected inside the cold water tank, and the condenser is fixedly connected to the support frame.

[0016] By adopting the above technical solution, by arranging the condenser on the support frame, it can not only ensure full contact between the condenser and the cold water in the cold water tank, but also protect the pipeline in the condenser and improve the service life of the condenser.

[0017] In a possible implementation manner, a vertically arranged water outlet pipe is further arranged at the bottom of the spray tank, and a water outlet valve is connected to the water outlet pipe.

[0018] By adopting the above technical solution, after the spray tank is used for a long time, precipitation will gradually accumulate below the adsorption layer. By opening the water outlet valve, the impurities precipitated in the spray tank will leave the inner cavity of the spray tank driven by the cold water in the spray tank, thereby reducing the pressure on the filter plate to filter impurities.

[0019] In a possible implementation manner, an observation window is provided at the bottom of the spray tank for observing the state of the cold water in the inner cavity of the spray tank.

[0020] By adopting the above technical solution, the usage state of the cold water in the inner cavity of the spray tank can be observed through the observation window, so as to facilitate the user to judge the time to replace the cold water.

[0021] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0022] 1. By providing an adsorption layer and a filter plate, the adsorption layer and the filter plate cooperate to reduce the probability that impurities in the cold water in the spray tank enter the cold water tank, which can not only reduce the probability of a decrease in heat exchange efficiency caused by impurities adhering to the outer wall of the condenser, but also reduce the probability of blockage of the circulation pump or the spray nozzle, and achieve ensuring the processing efficiency of the asphalt fume input into the spray tank;

[0023] 2. By providing a spray pipe, a spray nozzle and a spherical packing layer, the temperature of the introduced asphalt fume is reduced, the movement speed of the asphalt fume introduced into the spray tank is slowed down, and the asphalt fume is treated by the water mist formed by the spray nozzle, thereby reducing the probability of direct emission of the asphalt fume to the outside;

[0024] 3. By providing a first connecting pipe and a second connecting pipe, the spray tank and the cold water tank form a communicating vessel, thereby ensuring the interaction of the cold water in the spray tank and the cold water tank and ensuring the circulation of the water in the spray tank and the cold water tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for description in the embodiments of the present application. Obviously, the following drawings are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 It is a schematic structural diagram of a condensation device for asphalt production provided by an embodiment of the present application;

[0027] Figure 2 It is a cross-sectional view of a condensation device for asphalt production provided by an embodiment of the present application from a perspective perpendicular to the connection surface of the filter plate and the first connecting pipe.

[0028] Reference numerals: 1, spray tank; 11, air outlet; 12, air inlet; 13, water outlet pipe; 14, observation window; 2, spray pipe; 21, spray nozzle; 22, spherical packing layer; 23, adsorption layer; 24, circulation pump; 3, cold water tank; 31, bracket; 4, condenser; 41, water inlet; 42, water outlet; 5, first connecting pipe; 51, locking valve; 6, second connecting pipe; 7, filter plate; 8, water outlet valve. Detailed implementation manners

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0030] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. The terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0031] Referring to Figure 1 and Figure 2 , the embodiments of the present application provide a condensation device for asphalt production, including:

[0032] A spray tank 1, including a hollow inner cavity. An air outlet 11 is opened at the top of the spray tank 1, and an air inlet 12 for introducing asphalt fumes is opened at the lower part of the spray tank 1. At least one spray pipe 2 is arranged at the upper part of the spray tank 1. The spray pipe 2 is provided with a spray nozzle 21 facing the bottom of the spray tank 1. A spherical packing layer is further arranged below the spray pipe 2, and an adsorption layer 23 is further arranged at the lower part of the spray tank 1;

[0033] The cold water tank 3 is communicated with the inner cavity of the spray tank 1, and a condenser 4 is further arranged in the cold water tank 3. A circulating pump 24 is also connected between the cold water tank 3 and the spray pipe;

[0034] Wherein, a first connecting pipe 5 is fixedly connected to the lower part of the spray tank 1, the cold water tank 3 is connected with a second connecting pipe 6, the first connecting pipe 5 is communicated with the second connecting pipe 6, and a filter plate 7 is further arranged between the first connecting pipe 5 and the second connecting pipe 6.

[0035] Exemplarily, the spray tank 1 and the cold water tank 3 contain cold water for treating asphalt fumes. The spray pipe 2 horizontally penetrates through the upper part of the spray tank 1 in a manner fixed by pipe clamps. Three spray nozzles 21 are provided, and the spray nozzles 21 are evenly distributed on the spray pipe 2. The water inlet 41 of the circulating pump 24 is connected to the inner cavity of the cold water tank 3, and the water outlet 42 of the circulating pump 24 is connected to the spray pipe 2 through a pipe.

[0036] The spherical packing layer 22 is horizontally arranged in the spray tank 1 for slowing down the movement speed of the asphalt fumes.

[0037] The adsorption layer 23 can be implemented as a perforated plate for the solid impurities in the asphalt fumes to adhere to. By restricting most of the solid impurities in the area between the adsorption layer 23 and the bottom wall of the spray tank 1, the filtering effect of the solid impurities in the filtered cold water by the filter plate 7 is ensured.

[0038] By adopting the above technical solution, the asphalt fumes to be treated are introduced into the spray tank 1 through the air inlet 12. After the asphalt fumes enter the spray tank 1, they are cooled by the cold water stored in the lower part of the spray tank 1. At the same time, the particulate impurities in the asphalt fumes are suspended in the cold water in the lower part of the spray tank 1. When the asphalt fumes pass through the spherical packing layer 22, they are further treated by the water mist sprayed by the spray nozzles 21. The cold water in the cold water tank 3 exchanges heat with the refrigeration medium in the condenser 4 to keep the cold water in the spray tank 1 and the cold water tank 3 at a lower temperature. The solid impurities in the cold water in the spray tank 1 are fixed by the adsorption layer 23 and the filter plate 7 through the first connecting pipe 5, thereby reducing the probability of blocking the spray nozzles 21 by the circulating pump 24, and further ensuring the treatment effect on the asphalt fumes.

[0039] In a possible implementation manner, a locking valve 51 is further arranged on the first connecting pipe 5.

[0040] By adopting the above technical solution, the locking valve 51 can be implemented as a ball valve. The locking valve 51 can close the cold water in the first connecting pipe 5, so as to facilitate the replacement of the filter plate 7 with reduced filtering performance, and further ensure the filtering effect of the filter plate 7 on the cold water in the spray tank 1.

[0041] In a possible implementation, the condenser 4 is horizontally arranged, and the height of the water inlet 41 of the condenser 4 is lower than that of the water outlet 42.

[0042] By adopting the above technical solution, setting the water inlet 41 of the condenser 4 on the side lower than the water outlet 42 can ensure that the refrigeration medium in the condenser 4 is in full contact with the cold water placed in the cold water tank 3, thereby improving the effect of heat exchange between the cold water in the cold water tank 3 and the condenser 4.

[0043] In a possible implementation, a support frame is fixedly connected inside the cold water tank 3, and the condenser 4 is fixedly connected to the support frame.

[0044] The support frame is implemented as an aluminum alloy support frame 31, which is integrally connected to the cold water tank 3 by means of bolt connection, and is used to support the condenser 4 and raise the height of the condenser 4 body, so as to ensure that the cold water in the cold water tank 3 remains at a lower temperature under the action of the refrigeration medium in the condenser 4, which is convenient for cooling the asphalt fume at a higher temperature and improving the treatment effect on the asphalt fume.

[0045] By adopting the above technical solution, by arranging the condenser 4 on the support frame, it can not only ensure full contact between the condenser 4 and the cold water in the cold water tank 3, but also protect the pipeline in the condenser 4 and improve the service life of the condenser 4.

[0046] In a possible implementation, a vertically arranged water outlet pipe 13 is further provided at the bottom of the spray tank 1, and a water outlet valve 8 is connected to the water outlet pipe 13.

[0047] By adopting the above technical solution, after the spray tank 1 is used for a long time, sediment will gradually accumulate below the adsorption layer 23. By opening the water outlet valve 8, the sediment in the spray tank 1 will leave the inner cavity of the spray tank 1 under the drive of the cold water in the spray tank 1, thereby reducing the pressure of the filter plate 7 for filtering impurities.

[0048] In a possible implementation, an observation window 14 for observing the state of the cold water in the inner cavity of the spray tank 1 is provided at the bottom of the spray tank 1.

[0049] By adopting the above technical solution, the use state of the cold water in the inner cavity of the spray tank 1 can be observed through the observation window 14, so as to facilitate the user to judge the time for replacing the cold water.

[0050] The technical solutions provided in the embodiments of the present application have the following technical effects:

[0051] 1. By providing the adsorption layer 23 and the filter plate 7, the cooperation between the adsorption layer 23 and the filter plate 7 reduces the probability of impurities in the cold water in the spray tank 1 entering the cold water tank 3. This can not only reduce the probability of a decrease in heat exchange efficiency caused by impurities adhering to the outer wall of the condenser 4, but also reduce the probability of blockage of the circulation pump 24 or the spray nozzles 21, thus ensuring the treatment efficiency of the asphalt fumes input into the spray tank 1;

[0052] 2. By providing the spray pipe 2, the spray nozzles 21 and the spherical packing layer 22, the introduced asphalt fumes are cooled, the movement speed of the asphalt fumes introduced into the spray tank 1 is slowed down, and the asphalt fumes are treated by the water mist formed by the spray nozzles 21, thereby reducing the probability of the asphalt fumes directly escaping to the outside;

[0053] 3. By providing the first connecting pipe 5 and the second connecting pipe 6, the spray tank 1 and the cold water tank 3 form a communicating vessel, so as to ensure the interaction of the cold water in the spray tank and the cold water tank 3 and ensure the circulation of the water in the spray tank 1 and the cold water tank 3.

[0054] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, reference can be made to each other. The key points of each embodiment are the differences from other embodiments.

[0055] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present application.

Claims

1. A condensation device for asphalt production, characterized in that: include: A spray tank (1) comprises a hollow inner cavity, a gas outlet (11) is provided at the top of the spray tank (1), a gas inlet (12) for introducing asphalt fume is provided at the bottom of the spray tank (1), at least one spray pipe (2) is provided at the top of the spray tank (1), a spray nozzle (21) is provided at the spray pipe (2) toward the bottom of the spray tank (1), a spherical filler layer (22) is provided below the spray pipe (2), and an adsorption layer (23) is provided at the bottom of the spray tank (1); A cold water tank (3) is connected to the inner cavity of the spray tank (1), and a condenser (4) is also arranged in the cold water tank (3). A circulating pump (24) is also connected between the cold water tank (3) and the spray pipe; The spray tank (1) has a first connecting pipe (5) fixedly connected to its lower portion, the cold water tank (3) is connected to a second connecting pipe (6), the first connecting pipe (5) is communicated with the second connecting pipe (6), and a filter plate (7) is provided between the first connecting pipe (5) and the second connecting pipe (6).

2. The condensation device for asphalt production according to claim 1, characterized in that: The first connecting pipe (5) is also provided with a locking valve (51).

3. The condensation device for asphalt production according to claim 1, characterized in that: The condenser (4) is arranged horizontally, and the height of the water inlet (41) of the condenser (4) is lower than the height of the water outlet (42).

4. The condensation device for asphalt production according to claim 3, characterized in that: A support frame is fixedly connected inside the cold water tank (3), and the condenser (4) is fixedly connected to the support frame.

5. The condensation device for asphalt production according to claim 1, characterized in that: A vertically arranged water outlet pipe (13) is also provided at the bottom of the spray tank (1), and a water outlet valve (8) is connected to the water outlet pipe (13).

6. The condensation device for asphalt production according to claim 5, characterized in that: An observation window (14) for observing the state of cold water in the inner cavity of the spray tank (1) is provided at the bottom of the spray tank (1).

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