Concrete precast block drying equipment

Abstract

The utility model relates to a concrete precast block drying device which comprises a base, a drying box is fixed on the base, a heat exchange mechanism is fixed on the back face of the drying box, and the heat exchange mechanism further comprises a heat exchange set. According to the device, in the concrete drying process, the heat exchange mechanism can regulate and control the temperature and humidity in the drying box, and the concrete drying effect is improved; and meanwhile, the heat exchange group can secondarily recycle waste heat, so that the utilization rate of energy is improved, and the consumption of electric energy is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete drying, in particular to a concrete prefabricated block drying device. Background Art

[0002] Concrete, as an engineering composite material, is mainly composed of cementitious materials that tightly bind aggregates into a whole. Before concrete is used in actual projects, its various properties must be strictly tested. In the testing process, a common step is to dry the concrete into concrete blocks for subsequent performance testing. The concrete drying process usually relies on a special concrete drying box to complete it.

[0003] Chinese patent CN213955819U discloses a concrete drying box, which includes a box body, a sealed door is arranged on one side of the box body, a ventilation mechanism and a blower are arranged on the other side, and a bracket is also arranged in the box body.

[0004] When drying concrete, the above equipment cannot reasonably regulate the temperature and humidity in the box to ensure a dry environment for the concrete, and the exhausted waste heat cannot be recycled, resulting in a waste of energy.

[0005] Therefore, it is necessary to provide a prefabricated concrete block drying device to solve the problems raised in the above background technology. Utility Model Content

[0006] To achieve the above purpose, the utility model provides the following technical solution: a concrete prefabricated block drying device, comprising:

[0007] A base, specifically a drying box is fixed on the base;

[0008] The heat exchange mechanism is fixed on the back of the drying box, and specifically the heat exchange mechanism includes:

[0009] A shell is fixed on the drying box, and an independent monitoring chamber is opened on the upper side of the shell, and an independent driving chamber is opened on the lower side of the shell, and a heating chamber is opened in the remaining middle space of the shell, and an inlet is fixed through the shell in the driving chamber, and a lead-out port is fixed through the shell in the monitoring chamber;

[0010] A circulating fan is fixed in the driving compartment and is connected to the inlet;

[0011] A heating plate, fixed on the inner wall of the heating chamber;

[0012] A heat pipe is fixed in the heating chamber, and one end of the heat pipe is connected to the circulation fan; and

[0013] The heat exchange group is fixed on the shell, and the heat pipe passes through the shell and is connected with the heat exchange group.

[0014] As a further improvement of the utility model, a plurality of fixed tables are distributed in the drying box, each of which can hold a group of concrete; and a plurality of air outlets are evenly distributed in the drying box, and an exhaust port is opened on the top side, and the exhaust port is connected to the guide port.

[0015] As a further improvement of the present invention, a temperature sensor and an air humidity sensor are arranged in the monitoring chamber, and the monitoring chamber is also connected to the heat exchange group.

[0016] As a further improvement of the present invention, the heating plates and the heat pipes are distributed alternately.

[0017] As a further improvement of the present invention, the heat exchange group comprises:

[0018] A shell is fixed on the housing, and an inlet pipe, an outlet pipe, an air inlet and an outlet are respectively fixed on the shell;

[0019] a cold air pipe, fixed in the housing, with one end connected to the introduction pipe and the other end connected to the air inlet; and

[0020] The waste heat air duct is fixed in the shell, and one end of the waste heat air duct is connected to the outlet pipe, and the other end of the waste heat air duct is connected to the outlet.

[0021] As a further improvement of the present invention, the export pipe is connected to the monitoring chamber, and the import pipe is connected to the heat pipe.

[0022] As a further improvement of the utility model, an air desiccant is placed in the air inlet.

[0023] As a further improvement of the present invention, the cold air duct and the waste heat air duct are installed alternately, and the waste heat air duct should be higher than the cold air duct.

[0024] Compared with the prior art, the beneficial effects of the utility model are:

[0025] 1. The heat exchange mechanism ensures the temperature balance of each area in the drying box by accurately controlling the temperature and humidity in the drying box, so as to avoid the internal stress of the concrete slab caused by uneven drying, thereby avoiding the cracking of the concrete; at the same time, the humidity in the drying box 4 can be controlled by the air circulation rate, thereby improving the drying process and quality of the concrete block to achieve the best drying effect.

[0026] 2. The heat exchange group improves the heating efficiency of the outside air and the energy utilization efficiency by secondary recovery of waste heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an overall schematic diagram of a concrete precast block drying equipment;

[0028] Figure 2 It is a schematic diagram of the heat exchange mechanism structure of a concrete prefabricated block drying equipment;

[0029] Figure 3 This is a structural diagram of a heat exchange group of a concrete precast block drying equipment.

[0030] Among them, 1. base; 2. heat exchange mechanism; 21. shell; 22. drive compartment; 23. monitoring compartment; 24. inlet; 25. heating plate; 26. outlet; 27. heat pipe; 3. heat exchange group; 31. shell; 32. inlet pipe; 33. outlet pipe; 34. air inlet; 35. outlet; 36. cold air duct; 37. waste heat air duct; 4. drying box. DETAILED DESCRIPTION

[0031] See also Figures 1 to 3 As shown, a concrete prefabricated block drying device is characterized in that it includes:

[0032] A base 1, specifically a drying box 4 is fixed on the base 1;

[0033] The heat exchange mechanism 2 is fixed on the back of the drying box 4. Specifically, the heat exchange mechanism 2 includes:

[0034] The shell 21 is fixed on the drying box 4, and an independent monitoring chamber 23 is opened on the upper side of the shell 21, and an independent driving chamber 22 is opened on the lower side of the shell 21. A heating chamber is opened in the remaining middle space of the shell 21, and an inlet 24 is fixed through the shell 21 in the driving chamber 22, and a lead-out port 26 is fixed through the shell 21 in the monitoring chamber 23;

[0035] A circulating fan is fixed in the driving compartment 22 and is connected to the inlet 24;

[0036] A heating plate 25 is fixed on the inner wall of the heating chamber;

[0037] A heat pipe 27 is fixed in the heating chamber, and one end of the heat pipe 27 is connected to the circulation fan; and

[0038] The heat exchange group 3 is fixed on the shell 21 , and the heat pipe 27 passes through the shell 21 and is connected to the heat exchange group 3 .

[0039] like Figure 1-Figure 2 As shown, the utility model also includes: a plurality of fixed tables are distributed in the drying box 4, each of which can hold a group of concrete; a plurality of air outlets are evenly distributed in the drying box 4, and an exhaust port is opened on the top side, and the exhaust port is connected to the guide port 26; the heating plates 25 and the heat pipes 27 are alternately distributed, which effectively improves the heating effect of the heating plates 25 on the air in the heat pipes 27.

[0040] The shaped concrete is placed in the drying box 4 through a fixed platform, and the circulating fan and the heating plate 25 are started. Under the action of the circulating fan, the cold air flows into the heat pipe 27 after being pre-treated by the heat exchange group 3. The cold air in the heat pipe 27 is gradually heated by the heating plate 25 during the circulation process. When the air is heated and reaches the concrete drying standard, the hot air will enter the drying box 4 through the inlet 24. The multiple air outlets distributed in the drying box 4 ensure the temperature balance of each area in the drying box 4, so as to avoid the uneven drying of the concrete slab to generate its internal stress, thereby causing the concrete to crack.

[0041] At the same time, when hot air continuously enters the drying box 4 to dry the concrete, the moisture volatilized by the concrete is discharged into the monitoring chamber 23 by the hot air through the outlet 26. The temperature sensor in the monitoring chamber 23 detects the temperature of the discharged hot air to obtain the real-time temperature in the drying box 4. The air humidity sensor can detect the humidity carried by the discharged hot air, and the drying state of the concrete can be judged according to the humidity of the air discharged from the drying box 4. Therefore, the heating effect of the heating plate 25 on the air and the air humidity replacement gap in the drying box 4 are regulated by the temperature and humidity of the discharged hot air, thereby improving the drying process and quality of the concrete blocks to achieve the best drying effect.

[0042] like Figure 3 As shown, the utility model also includes: the heat exchange group 3 includes:

[0043] A housing 31 is fixed on the housing 21, and an inlet pipe 32, an outlet pipe 33, an air inlet 34 and an outlet 35 are respectively fixed on the housing 31;

[0044] a cold air pipe 36 fixed in the housing 31 and connected to the introduction pipe 32 at one end and connected to the air inlet 34 at the other end; and

[0045] The waste heat air duct 37 is fixed in the housing 31 , and one end of the waste heat air duct 37 is connected to the outlet duct 33 , and the other end of the waste heat air duct 37 is connected to the outlet 35 .

[0046] like Figure 3As shown, the utility model further comprises: the outlet pipe 33 is connected to the monitoring chamber 23, the inlet pipe 32 is connected to the heat pipe 27; an air desiccant is placed in the air inlet 34;

[0047] The cold air duct 36 and the waste heat air duct 37 are installed alternately, and the waste heat air duct 37 should be higher than the cold air duct 36, so as to effectively improve the efficiency of waste heat recovery and waste heat utilization.

[0048] When the waste heat gas in the drying box 4 enters the waste heat air duct 37 through the outlet pipe 33, and the external cold air enters the cold air duct 36 through the air inlet 34, the hot air in the waste heat air duct 37 can replace the heat, and the cold air in the cold air duct 36 can be treated with waste heat, and the waste heat can be recovered for secondary utilization, thereby reducing heat loss and improving the efficiency of air heating in the heat pipe 27 through the heating plate 25, thereby reducing the energy consumption of the heating plate 25.

[0049] When the outside air passes through the air inlet 34 , the air desiccant can dry the air to prevent the outside environment from affecting the humidity environment in the drying box 4 .

[0050] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A concrete prefabricated block drying device, characterized in that: include: A base (1), specifically a drying box (4) is fixed on the base (1); The heat exchange mechanism (2) is fixed on the back of the drying box (4). Specifically, the heat exchange mechanism (2) comprises: A shell (21) is fixed on the drying box (4), and an independent monitoring chamber (23) is provided on the upper side of the shell (21), and an independent driving chamber (22) is provided on the lower side of the shell (21); a heating chamber is provided in the remaining middle space of the shell (21), and an inlet (24) is fixed through the shell (21) in the driving chamber (22), and a lead-out port (26) is fixed through the shell (21) in the monitoring chamber (23); A circulating fan is fixed in the driving chamber (22) and is connected to the inlet (24); A heating plate (25) is fixed on the inner wall of the heating chamber; A heat pipe (27) is fixed in the temperature-raising chamber, and one end of the heat pipe (27) is connected to the circulation fan; and The heat exchange group (3) is fixed on the shell (21), and the heat pipe (27) passes through the shell (21) and is connected to the heat exchange group (3).

2. A concrete prefabricated block drying device according to claim 1, characterized in that: A plurality of fixed tables are distributed in the drying box (4), each of which can hold a group of concrete; and a plurality of air outlets are evenly distributed in the drying box (4), and an exhaust port is opened on the top side, and the exhaust port is connected to the guide port (26).

3. The concrete prefabricated block drying equipment according to claim 1, characterized in that: A temperature sensor and an air humidity sensor are arranged in the monitoring chamber (23), and the monitoring chamber (23) is also connected to the heat exchange group (3).

4. The concrete prefabricated block drying equipment according to claim 1, characterized in that: The heating plates (25) and the heat pipes (27) are distributed alternately and at intervals.

5. The concrete prefabricated block drying equipment according to claim 1, characterized in that: The heat exchange group (3) comprises: A shell (31) is fixed on the housing (21), and an inlet pipe (32), an outlet pipe (33), an air inlet (34) and an outlet (35) are respectively fixed on the shell (31); A cold air pipe (36) is fixed in the housing (31), one end of which is connected to the introduction pipe (32) and the other end of which is connected to the air inlet (34); and The waste heat air duct (37) is fixed in the shell (31), and one end of the waste heat air duct is connected to the outlet pipe (33), and the other end of the waste heat air duct is connected to the outlet (35).

6. The concrete prefabricated block drying equipment according to claim 5, characterized in that: The outlet pipe (33) is connected to the monitoring chamber (23), and the inlet pipe (32) is connected to the heat pipe (27).

7. The concrete prefabricated block drying equipment according to claim 5, characterized in that: An air desiccant is placed in the air inlet (34).

8. The concrete prefabricated block drying equipment according to claim 5, characterized in that: The cold air duct (36) and the waste heat air duct (37) are installed alternately, and the waste heat air duct (37) should be higher than the cold air duct (36).

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