Asphalt construction heating device

Abstract

The utility model discloses an asphalt construction heating device which comprises a shell, a heating part arranged in an evaporation cavity of the shell, an extension pipe arranged on the shell and communicated with the evaporation cavity, a pressure control assembly communicated with the end, away from the evaporation cavity, of an air channel of the extension pipe, and the pressure control assembly comprises a pressure control part and a filtering part communicated with the connecting end of the pressure control part. The pressure control part is communicated with the air channel of the extension pipe, a piston is arranged in the pressure control part and connected with one end of a connecting rod, the other end of the connecting rod extends to the outside of the pressure control part and is provided with a baffle disc, when the pressure in the air channel is smaller than a preset pressure value, the piston blocks the connecting end, and when the pressure in the air channel is higher than the preset pressure value, the piston moves to open the connecting end; and the gas enters the filtering part and is discharged from an exhaust port of the filtering part. The open asphalt heating device provided by the utility model solves the problems that the asphalt heating efficiency is low and the atmosphere is polluted due to asphalt evaporation when the existing open asphalt heating device is used for heating asphalt.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to an asphalt construction heating device. Background Art

[0002] Asphalt construction heating device is a device used to heat asphalt materials to a temperature suitable for construction. Asphalt needs to maintain a certain temperature during the construction process to ensure that it can flow and adhere to the base material. Asphalt construction heating device usually uses gas or electric heating to heat the asphalt to the required construction temperature;

[0003] However, the existing open asphalt heating device causes asphalt evaporation and heat loss when heating asphalt, resulting in low asphalt heating efficiency. Asphalt evaporation also pollutes the atmosphere. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In order to solve the problem that the existing open asphalt heating device has asphalt evaporation and heat loss when heating asphalt, resulting in low asphalt heating efficiency and asphalt evaporation also pollutes the atmosphere, the utility model provides the following technical solutions: an asphalt construction heating device, comprising a shell, a heating part provided in an evaporation chamber of the shell, characterized in that: an extension pipe connected to the evaporation chamber is provided on the shell, and the airway of the extension pipe is connected to a pressure control component away from the evaporation chamber end;

[0006] The pressure control assembly includes a pressure control part, and a filter part connected to the connecting end of the pressure control part, the pressure control part is connected to the airway of the extension tube, a piston is provided in the pressure control part, the piston is connected to one end of a connecting rod, and the other end of the connecting rod extends to the outside of the pressure control part and is provided with a baffle, when the pressure in the airway is lower than a preset pressure value, the piston blocks the connecting end, when the pressure in the airway is higher than the preset pressure value, the piston moves to open the connecting end, and the gas enters the filter part and is discharged at the exhaust port of the filter part.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] As a preferred solution of the asphalt construction heating device of the utility model, a sealing cover is provided on the shell through a hinge.

[0009] As a preferred solution of the asphalt construction heating device of the utility model, a stirring rod is provided in the evaporation chamber of the shell, the stirring end of the stirring rod is in contact with the inner wall of the evaporation chamber, the top of the stirring rod passes through the opening of the sealing cover, and a sealing member is provided at the opening.

[0010] As a preferred solution of the asphalt construction heating device of the utility model, a reset piece is provided at the junction of the piston and the extension tube.

[0011] As a preferred solution of the asphalt construction heating device of the utility model, a first filter element is provided at the junction of the piston and the extension tube.

[0012] As a preferred solution of the asphalt construction heating device of the utility model, the pressure control part includes an air cylinder, the inner wall of the air cylinder is sleeved with a piston, and the piston is provided with a scraper closely attached to the inner wall of the air cylinder.

[0013] As a preferred solution of the asphalt construction heating device of the utility model, the reset member is a second magnet arranged on the piston, and the other is a first magnet arranged on the air cylinder, and the first magnet and the second magnet are attracted to each other by opposite sexes.

[0014] As a preferred solution of the asphalt construction heating device of the utility model, the connecting end is a notch opened on the outer surface of the gas cylinder, and a narrow hole opened on the notch.

[0015] As a preferred solution of the asphalt construction heating device of the utility model, the filtering part includes a conduit and a valve arranged on the conduit, one end of the conduit is connected to a buffer cylinder, and a second filter is detachably mounted on the buffer cylinder.

[0016] As a preferred solution of the asphalt construction heating device of the utility model, the other end of the conduit is arranged on the notch and is connected to the gas cylinder through a narrow hole.

[0017] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, a heating part is provided in the shell, and a pressure control component is connected to the extension tube connected to the evaporation chamber. The pressure control component includes a pressure control part and a filter part. When the asphalt in the evaporation chamber evaporates, the piston will move to open the connection end, release the indoor air pressure, and filter the steam through the filter part. In this way, the air pressure balance in the evaporation chamber can be maintained to avoid polluting the atmosphere. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0019] Figure 1 It is a stereogram of the whole embodiment.

[0020] Figure 2 For this embodiment Figure 1 Stereoscopic diagram.

[0021] Figure 3 It is a three-dimensional diagram of the pressure control assembly of this embodiment.

[0022] Figure 4 It is a three-dimensional diagram of the pressure control assembly of this embodiment.

[0023] Figure 5 For this embodiment Figure 4 Some local schematic diagrams.

[0024] Figure 6 For this embodiment Figure 4 Some local schematic diagrams.

[0025] In the figure; a housing 100, an evaporation chamber 100a, a sealing cover 101, a heating portion 102, a stirring rod 103, and an extension tube 104;

[0026] The pressure control assembly 200, the pressure control portion 201, the air cylinder 201a, the connecting end 201a-1, the notch 201a-1a, and the narrow hole 201a-1b;

[0027] Connecting rod 201b, baffle plate 201c, piston 201d, scraper strip 201d-1;

[0028] A reset member 202, a first magnet 202a, and a second magnet 202b;

[0029] The first filter element 203, the filter unit 204, the conduit 204a, the valve 204a-1, the buffer cylinder 204b, and the second filter element 204b-1. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0033] Reference Figures 1 to 6 , is an embodiment of the utility model, which provides an asphalt construction heating device, including a shell 100, a heating unit 102 is provided in an evaporation chamber 100a of the shell 100, an extension pipe 104 connected to the evaporation chamber 100a is provided on the shell 100, and an air passage of the extension pipe 104 away from the evaporation chamber end is connected to a pressure control component 200;

[0034] The pressure control assembly 200 includes a pressure control unit 201, and a filter unit 204 connected to a connection end 201a-1 of the pressure control unit 201. The pressure control unit 201 is connected to the extension tube 104. A piston 201d is provided in the pressure control unit 201. The piston 201d cooperates with the reset member 202. The piston 201d is connected to one end of a connecting rod 201b. The other end of the connecting rod 201b extends to the outside of the pressure control unit 201 and is provided with a baffle 201c. When the pressure in the evaporation chamber 10a is When the force is too large, the air pressure pushes the piston 201d to break free from the restraint of the reset member 202, so that it moves inside the pressure control part 201, so that the steam enters the filter part 204 through the connection end and communicates with the outside, releasing the air pressure of the evaporation chamber 100a. The filter part 204 is provided with a second filter 204b-1 for filtering the discharged steam. After the pressure is balanced, the piston 201d is restrained by the reset member 202 and moves to the original position, so that the sealed evaporation chamber 100a maintains the air pressure;

[0035] Specifically, asphalt is added into the evaporation chamber 100a of the shell 100, and the heating unit 102 is started. The heating unit can be electric heating or combustion heating to heat the asphalt. After a period of time, the asphalt evaporates and the air inside the evaporation chamber 100a fills the evaporation chamber 100a of the shell 100 and the air passage of the extension pipe 104. As the indoor air pressure increases, when the pressure in the air passage is higher than the preset pressure value, it is proved that the asphalt has been completely heated and melted. The piston 201d moves to open the connection end to release the indoor pressure. At the same time, the filter unit 204 filters the evaporated asphalt to avoid polluting the atmosphere.

[0036] Furthermore, when the pressure in the airway is less than the preset pressure value, the piston 201d blocks the connection end 201a-1, and the asphalt can be poured out from the shell 100. The asphalt flows out under the action of gravity. As the amount of asphalt left is increasing and continues for a certain period of time, the efficiency of subsequent asphalt outflow will slow down. At this time, by pushing the baffle 201c, the piston 201d moves to squeeze the gas in the evaporation chamber 100a, pushing the asphalt to flow out faster, thereby improving the discharge efficiency;

[0037] Furthermore, a reset member 202 is provided at the junction of the piston 201d and the extension tube 104;

[0038] The controllability of adding the reset member 202 to the piston 201d to block / open the connection end 201a-1 is guaranteed. Specifically, when the pressure in the airway changes slightly, it can be quickly sealed by the reset member 202 to keep the air pressure of the housing 100 stable. When the pressure in the airway is higher than the preset pressure value, the material and characteristics of the reset member can be selected to control the magnitude of the restoring force of the reset member on the piston 201d to adapt to the preset pressure value. That is to say, by installing the reset member 202, the asphalt melts to meet the requirements, and the reset member 202 returns to the preset pressure value equal to the pressure. As long as the staff observes the phenomenon of air leakage, they will stop heating the asphalt in time to proceed to the next step.

[0039] Furthermore, a first filter element 203 is provided at the junction of the piston 201d and the extension tube 104;

[0040] Specifically, the position of the first filter element 203 is critical. The function of the first filter element 203 at the junction of the piston 201d and the extension tube 104 is to prevent asphalt from accumulating on the inner wall of the piston moving area, which will affect the movement of the piston after the asphalt is completely dried, and to prevent the sealing of the piston from failing. In addition, it is convenient to install and replace the first filter element 203 to prevent the above situation from happening.

[0041] For the convenience of understanding of the embodiments, Figure 1-2 , a sealing cover 101 is provided on the housing 100 through a hinge, a stirring rod 103 is provided in the evaporation chamber 100a of the housing 100, a stirring end of the stirring rod 103 is in contact with the inner wall of the evaporation chamber 100a, a top of the stirring rod 103 passes through the opening of the sealing cover 101, and a sealing member is provided at the opening;

[0042] Specifically, the sealing cover 101 is opened to pour asphalt into the housing 100, and the sealing cover 101 is closed during heating, so that the sealing member on the sealing cover contacts the surface of the stirring rod 103 to seal the evaporation chamber 100a. When the asphalt is heated, the stirring rod 103 is used to stir the asphalt so that the asphalt can be heated evenly. The stirring rod 103 can be driven by a motor, a mechanical arm swing, a manual stirring, etc., and used in conjunction with the top of the stirring rod 103;

[0043] For the convenience of understanding of the embodiments, Figure 1-2 , Figure 6 The pressure control part 201 shown includes a cylinder 201a, the inner wall of the cylinder 201a is sleeved with a piston 201d, the piston 201d is provided with a scraper 201d-1 which is closely attached to the inner wall of the cylinder 201a, the piston is sleeved in the cylinder 201a, the scraper 201d-1 provided on the piston 201d is closely attached to the inner wall of the cylinder 201a, and the asphalt is scraped off, which can further prevent the asphalt from accumulating on the inner wall of the piston moving area, thereby ensuring airtightness;

[0044] like Figure 3-Figure 4 , as shown, the reset member 202 is a second magnet 202b arranged on the piston 201d, and the other is a first magnet 202a arranged on the air cylinder 201a. The first magnet 202a and the second magnet 202b are attracted to each other by opposite sexes. The reset member 202 is a pair of magnets that attract each other to resist the air pressure in the airway. By reasonably allocating the size and material of the first magnet 202a and the second magnet 202b, it can be simply and better controlled that when the pressure value reaches the preset peak value, the reset member 202 returns to the preset pressure value equal to the pressure;

[0045] like Figure 4-Figure 5 As shown, the connecting end 201a-1 is a recess 201a-1a provided on the outer surface of the gas cylinder 201a, and a narrow hole 201a-1b provided on the recess 201a-1a. The filter portion 204 includes a conduit 204a, and a valve 204a-1 provided on the conduit 204a. One end of the conduit 204a is connected to a buffer cylinder 204b, and a second filter element 204b-1 is detachably provided on the buffer cylinder 204b. The other end of the conduit 204a is provided on the recess 201a-1a, and is connected to the gas cylinder 201a through the narrow hole 201a-1b.

[0046] Specifically, it is convenient for the piston to move on the inner wall of the cylinder, and the narrow hole 201a-1b is conducive to the slow decrease of air pressure, reducing unnecessary heat loss. The gas enters the buffer cylinder 204b and filters the asphalt particles through the detachable second filter 204b-1 to prevent it from entering the atmosphere. The detachable method is also for the convenience of replacing the second filter 204b-1. When the valve 204a-1 of the conduit 204a is unloading, the valve 204a-1 is closed to prevent air leakage, and then the baffle 201c on the connecting rod 201b is pushed to move the piston inward to squeeze the gas, so as to ensure the reliability of the asphalt being able to flow out faster. Then, after the asphalt is unloaded, the valve 204a-1 is opened again;

[0047] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0048] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0049] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An asphalt construction heating device, comprising a housing (100), wherein a heating unit (102) is provided in an evaporation chamber (100a) of the housing (100), characterized in that: The shell (100) is provided with an extension tube (104) connected to the evaporation chamber (100a); the air passage of the extension tube (104) is connected to a pressure control component (200) at the end away from the evaporation chamber; The pressure control assembly (200) comprises a pressure control part (201), and a filter part (204) connected to a connection end (201a-1) of the pressure control part (201); the pressure control part (201) is connected to the air passage of the extension tube (104); a piston (201d) is provided in the pressure control part (201); the piston (201d) is connected to one end of a connecting rod (201b); the other end of the connecting rod (201b) extends to the outside of the pressure control part (201) and a baffle (201c) is provided; when the pressure in the air passage is less than a preset pressure value, the piston (201d) blocks the connection end (201a-1); when the pressure in the air passage is higher than the preset pressure value, the piston (201d) moves to open the connection end (201a-1), and gas enters the filter part (204) and is discharged from an exhaust port of the filter part (204).

2. The asphalt construction heating device according to claim 1, characterized in that: The housing (100) is provided with a sealing cover (101) via a hinge.

3. The asphalt construction heating device according to claim 2, characterized in that: A stirring rod (103) is provided in the evaporation chamber (100a) of the shell (100), the stirring end of the stirring rod (103) is in contact with the inner wall of the evaporation chamber (100a), the top of the stirring rod (103) passes through the opening of the sealing cover (101), and a sealing member is sleeved on the opening.

4. The asphalt construction heating device according to claim 1, characterized in that: A reset member (202) is provided at the junction of the piston (201d) and the extension tube (104).

5. The asphalt construction heating device according to claim 1, characterized in that: A first filter element (203) is provided at the junction of the piston (201d) and the extension tube (104).

6. The asphalt construction heating device according to claim 1, characterized in that: The pressure control part (201) comprises an air cylinder (201a), the inner wall of the air cylinder (201a) is sleeved with a piston (201d), and the piston (201d) is provided with a scraper (201d-1) which is closely attached to the inner wall of the air cylinder (201a).

7. The asphalt construction heating device according to claim 4, characterized in that: The reset element (202) is a second magnet (202b) arranged on the piston (201d), and the other is a first magnet (202a) arranged on the air cylinder (201a), and the first magnet (202a) and the second magnet (202b) are attracted to each other by opposite polarities.

8. The asphalt construction heating device according to claim 1, characterized in that: The connecting end (201a-1) is a notch (201a-1a) provided on the outer surface of the gas cylinder (201a), and a narrow hole (201a-1b) provided on the notch (201a-1a).

9. The asphalt construction heating device according to claim 1, characterized in that: The filter unit (204) comprises a conduit (204a) and a valve (204a-1) arranged on the conduit (204a); one end of the conduit (204a) is connected to a buffer cylinder (204b); and a second filter element (204b-1) is detachably mounted on the buffer cylinder (204b).

10. The asphalt construction heating device according to claim 9, characterized in that: The other end of the conduit (204a) is arranged on the notch (201a-1a) and is connected to the gas cylinder (201a) through a narrow hole (201a-1b).

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