An internal circulation constant temperature filter system of a microwave concrete breaking device

Abstract

The application discloses a kind of microwave broken concrete equipment's inner circulation constant temperature filtering system, comprising: microwave heating bin and ventilation duct;Two ends of ventilation duct are communicated with microwave heating bin, ventilation duct is sequentially provided with temperature feedback meter, high-temperature resistant fan, water vapor dust mixed gas filter and intelligent temperature control hot air fan according to ventilation direction, wherein temperature feedback meter is arranged in the inside of ventilation duct, temperature control element is arranged in the inside of intelligent temperature control hot air fan, temperature control element is connected with temperature feedback meter, and temperature control element adjusts the air outlet temperature of intelligent temperature control hot air fan by reading the temperature of temperature feedback meter.The application can control the temperature of mixed gas in the return air to microwave heating bin, realize accurate temperature control, can ensure that the temperature of heating bin is not affected by heat loss caused by filtration, can realize constant temperature and filtering function simultaneously, to meet the needs of dust removal and constant temperature control of microwave broken concrete experiment inner circulation system.

Description

Technical Field

[0001] This invention relates to the field of gas dust removal and dehumidification technology, specifically to an internal circulation constant temperature filtration system for microwave concrete crushing equipment. Background Technology

[0002] In existing microwave concrete crushing equipment, during experiments, the high-temperature water vapor, concrete dust, and debris generated by microwave heating and crushing are directly extracted from the microwave heating chamber by a fan and released into the atmosphere. This not only pollutes the environment and affects human health, but also causes heat loss from the heating chamber.

[0003] When conducting microwave crushing experiments, it is usually necessary to study the effect of a specific factor on the crushing effect. Unstable and uncontrollable temperature loss inside the heating chamber caused by ordinary exhaust equipment may affect the accuracy of the experiment.

[0004] Patent application CN208751245U discloses a circulating air duct filtration device, including a burner, a return air duct, a motor, a side return air channel, and a circulating return air channel. This device is powered by a motor installed at the right end of the return air duct. The bottom of the return air duct is connected to the circulating return air channel, and side return air channels are installed on both sides of the circulating return air channel. The filter screen consists of a base plate and a steel mesh. Although this circulating filtration system can filter the air inside the duct, it cannot guarantee a constant temperature for the inlet and outlet air, making it impossible to precisely control the microwave concrete crushing equipment used in experiments. Summary of the Invention

[0005] In order to overcome the problems existing in the prior art, the purpose of this invention is to provide an internal circulation constant temperature filtration system for microwave concrete crushing equipment, which meets the requirements of the internal circulation system for dust removal and constant temperature control in microwave concrete crushing experiments.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] An internal circulation constant temperature filtration system for a microwave concrete crushing device includes: a microwave heating chamber and a ventilation duct;

[0008] Both ends of the ventilation duct are connected to the microwave heating chamber. The ventilation duct is equipped with a temperature feedback meter, a high-temperature resistant fan, a water vapor and dust mixed gas filter and an intelligent temperature-controlled hot air blower in sequence according to the ventilation direction.

[0009] The temperature feedback meter is installed inside the ventilation duct, and the intelligent temperature-controlled hot air blower is equipped with a temperature control element. The temperature control element is connected to the temperature feedback meter, and the temperature control element adjusts the outlet air temperature of the intelligent temperature-controlled hot air blower by reading the temperature of the temperature feedback meter.

[0010] Optionally, the ventilation duct includes a first duct, a second duct, a third duct, and a fourth duct; one end of the first duct is an air inlet, and the other end is connected to the second duct; the other end of the third duct is connected to the fourth duct; and the other end of the fourth duct is an air outlet.

[0011] The second pipe is perpendicular to the first pipe, the first pipe is perpendicular to the side of the microwave heating chamber, the second pipe is parallel to the side of the microwave heating chamber, the third pipe is parallel to the top surface of the microwave heating chamber, and the fourth pipe is perpendicular to the top surface of the microwave heating chamber.

[0012] Optionally, the temperature feedback meter is embedded inside the first pipe, the high-temperature resistant fan is located in the middle of the first pipe, the water vapor and dust mixed gas filter is located in the middle of the second pipe, and the intelligent temperature-controlled hot air blower is located in the middle of the third pipe.

[0013] Optionally, a dust collection box is provided at the bottom end of the second pipe, and the side wall of the first pipe is connected to the side wall of the second pipe.

[0014] Optionally, the dust collection box is provided with a sealing strip at the bottom, the dust collection box is sleeved on the outside of the ventilation duct, the bottom of the dust collection box is provided with a sliding groove, and the bottom plate of the dust collection box is installed in the sliding groove.

[0015] Optionally, the temperature control element and the temperature feedback meter are wirelessly connected.

[0016] Optionally, the intelligent temperature-controlled hot air blower is equipped with a heating device inside, and the heating device is electrically connected to the temperature control element.

[0017] Optionally, the outside of the ventilation duct is provided with thermal insulation material.

[0018] Optionally, the water vapor and dust mixed gas filter includes a high-temperature resistant housing, a dust filter assembly, and a water vapor absorption device. The high-temperature resistant housing has connection ports at both ends, a dust removal groove and an installation groove on the high-temperature resistant housing, the dust filter assembly is installed in the dust removal groove, and the water vapor absorption device is installed in the installation groove.

[0019] Optionally, the dust filtration assembly includes a primary dust filtration assembly, a secondary dust filtration assembly, and a tertiary dust filtration assembly. All dust filtration assemblies are plates with filter screens, and the mesh size of the filter screens of the dust filtration assemblies decreases progressively according to the ventilation direction.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] This invention features a ventilation duct outside the microwave heating chamber, within which are installed a temperature feedback meter, a high-temperature resistant fan, a water vapor and dust mixed gas filter, and an intelligent temperature-controlled hot air blower. The high-temperature resistant fan enables the flow of flue gas within the microwave heating chamber, the water vapor and dust mixed gas filter removes dust from the flue gas, and the intelligent temperature-controlled hot air blower contains a temperature control element connected to the temperature feedback meter located at the air inlet. This element regulates the temperature of the mixed gas returning to the microwave heating chamber, achieving precise temperature control and ensuring that the temperature of the heating chamber is not affected by heat loss due to filtration. This invention simultaneously achieves both constant temperature and filtration functions.

[0022] Furthermore, the ventilation duct of the present invention is provided with a dust collection box, which facilitates the collection of dust inside the ventilation duct.

[0023] Furthermore, the dust collection box of the present invention is sealed to the ventilation duct by a sealing strip, and the bottom of the dust collection box can be removed to prevent dust from leaking out; the bottom plate of the dust collection box can be removed to facilitate dust cleaning.

[0024] Furthermore, the ventilation duct of the present invention is provided with thermal insulation material, which can reduce the energy consumption of the intelligent temperature-controlled hot air blower.

[0025] Furthermore, the dust filtration assembly of the present invention is provided with multi-stage filter screens, which can ensure the filtration of concrete dust and debris of different sizes. Attached Figure Description

[0026] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely schematic to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. In the drawings:

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the water vapor and dust mixed gas filter structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the intelligent temperature-controlled hot air blower of the present invention;

[0030] Figure 4 This is a cross-sectional view of the first pipeline of the present invention.

[0031] In the diagram: 1-Microwave heating chamber; 2-Ventilation duct; 21-Air inlet; 22-Air outlet; 23-First duct; 24-Second duct; 25-Third duct; 26-Fourth duct; 3-High-temperature resistant fan; 4-Dust collection box; 5-Water vapor and dust mixed gas filter; 6-Intelligent temperature-controlled hot air blower; 51-High-temperature resistant shell; 52-Dust filter assembly; 53-Water vapor absorption device; 54-First-stage dust filter assembly; 55-Second-stage dust filter assembly; 56-Third-stage dust filter assembly; 61-Outer shell; 62-Heating device; 63-Temperature control element; 64-Temperature feedback meter; 65-Fan. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.

[0033] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] The present invention will now be described in detail with reference to the accompanying drawings.

[0036] like Figure 1 As shown, the present invention provides an internal circulation constant temperature filtration system for a microwave concrete crushing equipment, including a microwave heating chamber 1 and a ventilation duct 2.

[0037] The air inlet 21 of the ventilation duct 2 is connected to the side of the microwave heating chamber 1, and the air outlet 22 of the ventilation duct 2 is connected to the top surface of the microwave heating chamber 1. The ventilation duct 2 is equipped with a temperature feedback meter 64, a high-temperature resistant fan 3, a dust collection box 4, a water vapor and dust mixed gas filter 5, and an intelligent temperature-controlled hot air blower 6 in sequence according to the ventilation direction.

[0038] The ventilation duct 2 includes a first duct 23, a second duct 24, a third duct 25, and a fourth duct 26. One end of the first duct 23 is an air inlet 21, and the other end is connected to the side wall of the second duct 24. The high-temperature resistant fan 3 is located in the middle of the first duct 23. The second duct 24 is perpendicular to the first duct 23. One end of the second duct 24 is connected to the dust collection box 4, and the other end is connected to the third duct 25. The water vapor and dust mixed gas filter 5 is located between the connection point of the second duct 24 and the third duct 25, and between the connection point of the second duct 24 and the first duct 23. One end of the third duct 25 is connected to the second duct 24, and the other end is connected to the fourth duct 26. The intelligent temperature-controlled hot air blower 6 is located on the third duct 25, and the air outlet 22 is located at the end of the fourth duct 26.

[0039] The first pipe 23 is perpendicular to the side of the microwave heating chamber 1, the second pipe 24 is parallel to the side of the microwave heating chamber 1, the third pipe 25 is parallel to the top surface of the microwave heating chamber 1, and the fourth pipe 26 is perpendicular to the top surface of the microwave heating chamber 1. Figure 4 As shown, a temperature feedback meter 64 is embedded on the inner side of the upper surface of the first pipe 23. The temperature feedback meter 64 is wirelessly connected to the intelligent temperature-controlled hot air blower 6 and can transmit the temperature of the air inlet 21 to the intelligent temperature-controlled hot air blower 6 in real time. The dust collection box 4 is sealed to the ventilation pipe 2. The lower part of the dust collection box 4 can be opened for easy cleaning of dust and recycling.

[0040] like Figure 2As shown, the water vapor and dust mixed gas filter 5 includes a high-temperature resistant housing 51, a water vapor absorption device 53, and a dust filter assembly 52. ​​The dust filter assembly 52 includes a primary dust filter assembly 54, a secondary dust filter assembly 55, and a tertiary dust filter assembly 56. The high-temperature resistant housing 51 has connection ports at both ends, and a dust collection groove and a mounting groove on its side. The dust filter assembly 52 is installed in the dust collection groove, and the water vapor absorption device 53 is installed in the mounting groove. The primary dust filter assembly 54, the secondary dust filter assembly 55, and the tertiary dust filter assembly 56 are all plates with filter screens. The mesh size of the filter screen in the dust filter assembly 52 decreases progressively according to the ventilation direction to ensure the filtration of concrete dust and debris. Both the dust filter assembly 52 and the water vapor absorption device 53 are high-temperature resistant and detachable structures. When the system stops working, the dust filter assembly 52 can be removed for cleaning, and the filling material in the water vapor absorption device 53 can be replaced.

[0041] like Figure 3 As shown, the intelligent temperature-controlled hot air blower 6 includes a housing 61, and a heating device 62, a temperature control element 63, and a fan 65 are disposed inside the housing 61.

[0042] The outer shell 61 is a hollow cylinder, and rectangular through holes are provided at both ends of the outer shell 61.

[0043] The temperature control element 63 is located inside the housing 61. The temperature control element 63 can receive the signal sent by the temperature feedback meter 64 and adjust the power of the heating device 62 to ensure that the inlet air temperature is consistent with the outlet air temperature.

[0044] The fan 65 is disposed inside the housing 61, and the fan 65 is located between the heating device 62 and the temperature control element 63.

[0045] The number of heating devices 62 is two, and the heating devices 62 adopt a mesh heating core to improve heating efficiency.

[0046] Example

[0047] The following is combined Figure 1 The specific embodiments of the present invention will be further described below.

[0048] The present invention discloses an internal circulation constant temperature filtration system for a microwave concrete crushing device, which includes the following steps in use:

[0049] 1) The high-temperature resistant fan 3 draws the dust-laden high-temperature water vapor from the microwave heating chamber into the ventilation duct 2;

[0050] 2) After the mixed gas passes through the dust filter assembly 52, most of the dust and debris are intercepted, and the remaining water vapor is absorbed after passing through the water vapor absorption device 53.

[0051] 3) Due to gravity, some of the intercepted dust falls into the dust collection box 4 at the bottom, while the rest remains on the filter screen of the dust filter assembly 52.

[0052] 4) The filtered gas passes through the intelligent temperature-controlled hot air blower 6, and the temperature feedback meter 64 transmits the inlet gas temperature to the temperature control element 63. The temperature control element 63 controls the heating device 62 to heat the gas so that its temperature is consistent with the inlet gas temperature.

[0053] 5) After the experiment, the dust filter assembly 52 and the dust collection box 4 were disassembled and cleaned.

[0054] Unless otherwise specified, the equipment components involved in the above embodiments are all conventional equipment components, and the structural settings, working methods or control methods involved are all conventional settings, working methods or control methods in the art unless otherwise specified.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention, as long as they do not depart from the spirit and scope of the technical solutions of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. An internal circulation constant temperature filtration system for a microwave concrete crushing experimental device, characterized in that, include: Microwave heating chamber (1) and ventilation duct (2); Both ends of the ventilation duct (2) are connected to the microwave heating chamber (1). The ventilation duct (2) is provided with a temperature feedback meter (64), a high-temperature resistant fan (3), a water vapor and dust mixed gas filter (5) and an intelligent temperature-controlled hot air blower (6) in sequence according to the ventilation direction. The temperature feedback meter (64) is installed inside the ventilation duct (2), and the intelligent temperature-controlled hot air blower (6) is equipped with a temperature control element (63), which is connected to the temperature feedback meter (64). The temperature control element (63) adjusts the air outlet temperature of the intelligent temperature-controlled hot air blower (6) by reading the temperature of the temperature feedback meter (64). The ventilation duct (2) includes a first duct (23), a second duct (24), a third duct (25), and a fourth duct (26); one end of the first duct (23) is an air inlet (21), and the other end is connected to the second duct (24); the other end of the third duct (25) is connected to the fourth duct (26); the other end of the fourth duct (26) is an air outlet (22). The second pipe (24) is perpendicular to the first pipe (23), the first pipe (23) is perpendicular to the side of the microwave heating chamber (1), the second pipe (24) is parallel to the side of the microwave heating chamber (1), the third pipe (25) is parallel to the top surface of the microwave heating chamber (1), and the fourth pipe (26) is perpendicular to the top surface of the microwave heating chamber (1). A dust collection box (4) is provided at the bottom end of the second pipe (24), and the first pipe (23) is connected to the side wall of the second pipe (24); the temperature control element (63) and the temperature feedback meter (64) are wirelessly connected; The water vapor and dust mixed gas filter (5) includes a high-temperature resistant housing (51), a dust filter assembly (52), and a water vapor absorption device (53). The high-temperature resistant housing (51) has connection ports at both ends. The high-temperature resistant housing (51) has a dust removal groove and an installation groove. The dust filter assembly (52) is installed in the dust removal groove, and the water vapor absorption device (53) is installed in the installation groove. The temperature feedback meter (64) is embedded inside the first pipe (23), the high temperature resistant fan (3) is located in the middle of the first pipe (23), the water vapor dust mixed gas filter (5) is located in the middle of the second pipe (24), and the intelligent temperature control hot air blower (6) is located in the middle of the third pipe (25). The intelligent temperature-controlled hot air blower (6) is equipped with a heating device (62), and the heating device (62) is electrically connected to the temperature control element (63); The ventilation duct (2) is provided with thermal insulation material on the outside; The dust collection box (4) is provided with a sealing strip on the top. The dust collection box (4) is sleeved on the outside of the ventilation duct (2). The bottom of the dust collection box (4) is provided with a sliding groove. The bottom plate of the dust collection box (4) is installed in the sliding groove.

2. The internal circulation constant temperature filtration system of the microwave concrete crushing experimental equipment according to claim 1, characterized in that, The dust filter assembly (52) includes a primary dust filter assembly (54), a secondary dust filter assembly (55) and a tertiary dust filter assembly (56). All dust filter assemblies (52) are plates with filter screens. The mesh size of the filter screens of the dust filter assembly (52) decreases step by step according to the ventilation direction.

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