Heating furnace

Abstract

The utility model discloses a heating furnace which comprises a furnace body, an air inlet and an air outlet are formed in the two ends of the furnace body respectively, the air inlet is connected with a fan through an air inlet pipeline, an air volume regulator is arranged on the air inlet pipeline, a temperature sensor is arranged at the air outlet, and a plurality of heating rods and a plurality of turbulence baffles are arranged in an inner cavity of the furnace body. The temperature sensor, the fan and the plurality of heating rods are all electrically connected with the controller; according to the scheme, the air inlet amount of the furnace body can be adjusted by adjusting the opening adjusting valves on the exhaust pipeline and the air inlet pipeline; and then the flowing air is heated through a plurality of heating rods, and the turbulent flow baffle can disturb and mix the hot air in the furnace body, so that the heating effect is improved, and uniform and stable heating is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating furnaces, in particular to a heating furnace. Background Art

[0002] Impregnated activated carbon is made of RFHT-02 activated carbon as the base carbon, which is impregnated with a mixed solution of copper, chromium, silver and ammonia, and then set aside and dried. It is the protective material for the filter absorber in civil air defense equipment, and its performance determines the protective performance of the filter absorber; therefore, impregnated activated carbon is crucial to the filter absorber in civil air defense.

[0003] The production process of impregnated activated carbon includes: liquid preparation process, impregnation process, drying and activation process and aging process. At present, the drying and activation process generally uses a heating furnace in conjunction with a boiling furnace to activate and boil the activated carbon. In this process, the heating furnace is required to provide the boiling furnace with hot air of a preset temperature and flow rate. However, the existing heating furnace has a simple structure and inaccurate control of temperature and air volume, which affects the effect of activated carbon activation and boiling. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a heating furnace, which solves the problem of inaccurate control of temperature and air volume by the heating furnace.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A heating furnace is provided, which includes a furnace body. An air inlet and an air outlet are respectively arranged at both ends of the furnace body. The air inlet is connected to a fan through an air inlet duct, and an air volume regulator is arranged on the air inlet duct. A temperature sensor is arranged at the air outlet. A plurality of heating rods and some interference flow baffles are arranged in the inner cavity of the furnace body. The temperature sensor, the fan and the plurality of heating rods are all electrically connected to a controller.

[0007] Furthermore, the inner cavity of the furnace body is a vertically extending columnar structure, the air inlet and the air outlet are respectively arranged at the bottom and the top of the furnace body, and a plurality of heating rods are vertically arranged with gaps in the inner cavity of the furnace body.

[0008] Furthermore, the plurality of heating rods are divided into a plurality of heating groups, each heating group includes at least one heating rod, and the plurality of heating groups are independently controlled by a controller.

[0009] Furthermore, if the spoiler baffle is arranged in the extension direction of the inner cavity of the furnace body, a plurality of avoidance holes for passing the heating rods are provided on the spoiler baffle, and each spoiler baffle forms a ventilation gap with the inner wall of the furnace body.

[0010] Furthermore, projections of two adjacent ventilation gaps in the extension direction of the furnace inner cavity are respectively located on two sides of the furnace inner cavity.

[0011] Furthermore, the furnace body comprises an inner furnace body, the inner furnace body is wrapped with a heat-insulating layer, and the heat-insulating layer is sleeved with an outer shell.

[0012] Furthermore, both ends of the furnace body are provided with conical end covers with the conical ends protruding outwards, and the air inlet and the air outlet are respectively located on the conical end covers at the two ends of the furnace body.

[0013] Furthermore, the air volume regulator includes an exhaust duct arranged on the air inlet duct, and the exhaust duct and the air inlet duct located at the rear end of the exhaust duct are both provided with an opening regulating valve.

[0014] Furthermore, the furnace body, the fan and the controller are all arranged on a bracket, and a self-locking universal wheel is arranged at the bottom of the bracket.

[0015] The beneficial effects of the utility model are:

[0016] 1. This solution can adjust the air intake of the furnace by adjusting the opening regulating valves on the exhaust duct and the air inlet duct; then the flowing air is heated by a number of heating rods, and the spoiler baffle can disturb and mix the hot air in the furnace to improve the heating effect and achieve uniform and stable heating.

[0017] 2. This solution divides a number of heating rods into a number of heating groups independently controlled by a controller, wherein the heating group with a large number of heating rods can be used as a continuous heating source, while the heating group with a small number of heating rods can be used as an adjustable heat source, and start and stop control is performed in conjunction with the temperature monitored in real time by the temperature sensor, so as to achieve the purpose of adjusting, controlling and stabilizing the outlet temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the heating furnace.

[0019] Figure 2 A cross-sectional view of a heating furnace.

[0020] Figure 3 This is a cross-sectional view of the heating furnace.

[0021] Among them, 1. furnace body, 2. air inlet, 3. air outlet, 4. air inlet duct, 5. fan, 6. heating rod, 7. spoiler baffle, 8. avoidance hole, 9. ventilation gap, 10. inner furnace body, 11. insulation layer, 12. outer shell, 13. conical end cover, 14. exhaust duct, 15. opening regulating valve, 16. bracket, 17. universal wheel, 18. ceramic insulating terminal. DETAILED DESCRIPTION

[0022] The specific implementation methods of the utility model are described below to facilitate technical personnel in this technical field to understand the utility model, but it should be clear that the utility model is not limited to the scope of the specific implementation methods. For ordinary technical personnel in this technical field, as long as various changes are within the spirit and scope of the utility model defined and determined by the attached claims, these changes are obvious, and all utility model creations using the concept of the utility model are protected.

[0023] refer to Figures 1 to 3 The heating furnace of the present scheme comprises a furnace body 1, the inner cavity of the furnace body 1 is a vertically extending cylindrical structure, the top and bottom of the furnace body 1 are provided with conical end covers 13 with the conical ends protruding outward, and the conical end covers 13 at the bottom and top are respectively provided with air inlets 2 and air outlets 3 at the conical ends, the air inlet 2 is connected to the fan 5 through the air inlet duct 4, and the air outlet 3 is provided with a temperature sensor.

[0024] Nine vertical heating rods 6 are arranged in the inner cavity gap of the furnace body 1, and both ends of the heating rods 6 are connected to the ceramic insulating terminals 18. The nine heating rods 6 are divided into three heating groups, and the three heating groups include five heating rods 6, three heating rods 6 and one heating rod 6 respectively. The temperature sensor, the fan 5 and the three heating groups are electrically connected to the controller, and the three heating groups are independently controlled to start and stop by the controller. Specifically, the three heating groups are selected to be turned on, off and automatically controlled by the controller. The heating group selected to be turned on is a continuous heating source, the heating group selected to be turned off is not enabled, and the heating group selected to be automatically controlled is a regulating heat source. Generally, the heating group with the largest number of heating rods 6 can be used as a continuous heating source, and one or two heating groups with a smaller number of heating rods 6 can be used as a regulating heat source, and the start and stop control is performed in conjunction with the temperature monitored in real time by the temperature sensor, so as to achieve the purpose of regulating, controlling and stabilizing the temperature of the air outlet 3.

[0025] The inner cavity of the furnace body 1 is also provided with four spoiler baffles 7, which are evenly arranged in the extension direction of the inner cavity of the furnace body 1. The spoiler baffles 7 are provided with a number of avoidance holes 8 for passing the heating rods 6. Each spoiler baffle 7 forms a ventilation gap 9 with the inner wall of the furnace body 1, and the projections of two adjacent ventilation gaps 9 in the extension direction of the inner cavity of the furnace body 1 are respectively located on both sides of the inner cavity of the furnace body 1; in this way, when the hot air passes through the inner cavity of the furnace body 1, the spoiler baffle 7 can hinder the straight-line movement of the hot air, and make the hot air flow in an S-shaped direction through each ventilation gap 9 in turn, thereby increasing the disturbance and mixing between the hot air, so as to enhance the heating effect and achieve uniform and stable heating.

[0026] Preferably, the furnace body 1 includes an inner furnace body 10, the inner furnace body 10 is wrapped with an insulation layer 11 for slowing down heat loss, and the insulation layer 11 is sleeved with an outer shell 12; an air volume regulator is arranged on the air inlet duct 4, and the air volume regulator includes an exhaust duct 14 arranged on the air inlet duct 4, and the exhaust duct 14 and the air inlet duct 4 located at the rear end of the exhaust duct 14 are both provided with an opening regulating valve 15, and the air intake volume of the furnace body 1 can be adjusted by adjusting the two opening regulating valves 15; the furnace body 1, the fan 5 and the controller are all arranged on a bracket 16, and a self-locking universal wheel 17 is provided at the bottom of the bracket 16 to facilitate the movement and fixation of the entire heating furnace.

Claims

1. A heating furnace, characterized in that: It includes a furnace body, with an air inlet and an air outlet respectively arranged at both ends of the furnace body, the air inlet is connected to the fan through an air inlet duct, and an air volume regulator is arranged on the air inlet duct, a temperature sensor is arranged at the air outlet, and a plurality of heating rods and some interference flow baffles are arranged in the inner cavity of the furnace body, and the temperature sensor, the fan and the plurality of heating rods are all electrically connected to the controller.

2. The heating furnace according to claim 1, characterized in that: The inner cavity of the furnace body is a vertically extending columnar structure, the air inlet and the air outlet are respectively arranged at the bottom and the top of the furnace body, and a plurality of the heating rods are vertically arranged with gaps in the inner cavity of the furnace body.

3. The heating furnace according to claim 2, characterized in that: The plurality of heating rods are divided into a plurality of heating groups, each of the heating groups includes at least one heating rod, and the plurality of heating groups are independently controlled by a controller.

4. The heating furnace according to claim 2, characterized in that: The spoiler baffles are arranged in the extension direction of the inner cavity of the furnace body, and the spoiler baffles are provided with a plurality of avoidance holes for passing the heating rods. Each of the spoiler baffles forms a ventilation gap with the inner wall of the furnace body.

5. The heating furnace according to claim 4, characterized in that: The projections of two adjacent ventilation gaps in the extension direction of the furnace inner cavity are respectively located on two sides of the furnace inner cavity.

6. The heating furnace according to claim 1, characterized in that: The furnace body comprises an inner furnace body, the inner furnace body is wrapped with a heat-insulating layer, and the heat-insulating layer is sleeved with an outer shell.

7. The heating furnace according to claim 1, characterized in that: Both ends of the furnace body are provided with conical end covers with the conical ends protruding outwards, and the air inlet and the air outlet are respectively located on the conical end covers at the two ends of the furnace body.

8. The heating furnace according to claim 1, characterized in that: The air volume regulator comprises an exhaust duct arranged on the air inlet duct, and an opening regulating valve is arranged on both the exhaust duct and the air inlet duct located at the rear end of the exhaust duct.

9. The heating furnace according to claim 1, characterized in that: The furnace body, the fan and the controller are all arranged on a bracket, and a self-locking universal wheel is arranged at the bottom of the bracket.

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