Electric kiln with annular flue

Abstract

The utility model relates to the technical field of electric kilns, in particular to an electric kiln with an annular flue, which comprises a kiln body and a first filter bin, a second filter bin is fixedly mounted on the surface of the upper end of the first filter bin, an inner shell is fixedly mounted in the kiln body, and a kiln door is connected to the position, close to the surface of the front end, in the kiln body through a hinge. A plurality of electric heating wires are installed at the bottom end in the kiln body, a placing plate is fixedly connected to the position, close to the bottom, of the inner wall of the kiln body, the multiple smoke suction heads are arranged and distributed in the kiln body, smoke distributed on the upper portion, the lower portion and the middle portion in the kiln body can be rapidly and comprehensively sucked and exhausted, and the smoke exhaust efficiency is improved; by arranging the spraying mechanism, the spraying range of the flue gas is expanded, the flue gas in the second filtering bin can be uniformly sprayed, the filtering effect and efficiency are improved, sprayed water can be recycled, and water resources are saved.

Description

Technical Field

[0001] This utility model relates to the field of electric kiln technology, specifically an electric kiln with an annular flue. Background Technology

[0002] An electric kiln is an industrial or laboratory device that converts electrical energy into heat energy. It generates high temperatures by passing electricity through a resistance wire to perform heat treatment or material experiments. Electrical energy flows through the resistance wire and the resistive body to generate heat, which is then transferred to the sample or object inside the furnace via conduction and radiation.

[0003] In the prior art, such as the annular flue-topped rotary kiln body proposed in patent application number "CN202221539205.3", a water tank is set up so that the water inside the water tank enters the interior of the spray pipe through the water outlet pipe, and is sprayed onto the filter screen through the nozzle on the spray pipe. The impurities at the bottom of the filter screen are carried into the water tank with the water flow, cleaning the filter screen and reducing clogging. At the same time, the water can cool the flue gas and reduce the impact on the external environment.

[0004] However, in the aforementioned patent application, an annular flue is used to discharge the flue gas generated inside the electric kiln. However, the annular flue is located at the top inside the electric kiln, and the flue gas in the lower and middle parts of the kiln cannot be discharged quickly through the annular flue. Water spray pipes are used to cool the flue gas, and filters are used to filter the flue gas. However, the water cannot be sprayed evenly over a large area, resulting in poor cooling and filtration effects. In addition, water needs to be sprayed continuously, and the water source cannot be reused, thus wasting water resources. Utility Model Content

[0005] The purpose of this invention is to provide an electric kiln with an annular flue to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] An electric kiln with an annular flue includes a kiln body and a filter chamber 1. A filter chamber 2 is fixedly installed on the upper surface of the filter chamber 1. An inner shell is fixedly installed inside the kiln body. A kiln door is connected to the kiln body via a hinge near the front surface. Several heating wires are installed at the bottom of the kiln body. A placement plate is fixedly connected to the inner wall of the kiln body near the bottom. An annular flue body is fixedly installed at the top of the kiln body. Several smoke pipes are fixedly connected to the bottom surface of the annular flue body and inside the inner shell. Several smoke heads are fixedly connected to the outer walls of the smoke pipes. A one-way valve is installed on the outer wall of each smoke head.

[0008] Both filter chamber 2 and filter chamber 1 are fixedly equipped with spray nozzles. The top of filter chamber 2 is equipped with a spraying mechanism, which includes a water storage tank.

[0009] Preferably, a connecting compartment is fixedly installed on the upper surface of the second filter compartment, and an exhaust fan is installed inside the connecting compartment.

[0010] Preferably, a smoke exhaust pipe is fixedly connected to the upper surface of the connecting chamber, and the end of the smoke exhaust pipe away from the connecting chamber is fixedly connected to the annular flue body. A smoke outlet pipe is fixedly connected to the outer wall of the second filter chamber near the bottom, and an exhaust fan is installed inside the smoke outlet pipe.

[0011] Preferably, the water storage tank is rotatably connected to the top of the filter chamber 2, the inner wall of the filter chamber 1 is rotatably connected to a gear via a shaft, and the outer wall of the water storage tank is provided with a plurality of tooth grooves, and the gear is meshed with the plurality of tooth grooves.

[0012] A motor is installed on the upper surface of the second filter chamber, and the output end of the motor is connected to a gear.

[0013] Preferably, a plurality of nozzles are fixedly connected to the bottom surface and inner wall of the water storage tank, and a one-way valve is installed on the outer wall of each of the nozzles.

[0014] Preferably, a water pump is installed on one side of the filter chamber, and a connecting pipe is fixedly connected to one end of the water pump, with the end of the connecting pipe away from the water pump being fixedly connected to the filter chamber.

[0015] Preferably, the other end of the water pump is fixedly connected to a connecting pipe, and the end of the connecting pipe away from the water pump is fixedly connected to a filter chamber. Both the outer walls of the filter chamber and the filter chamber are fixedly connected to a sealing cover by screws. Both the filter chamber and the filter chamber are fixedly installed with filter screens inside. The outer wall of the filter chamber is fixedly connected to a water supply pipe.

[0016] The beneficial effects of this utility model are:

[0017] 1. This utility model absorbs the flue gas inside the kiln during the firing process by using an exhaust fan in conjunction with an exhaust pipe, an annular flue body, and various smoke pipes. The flue gas is drawn into the smoke pipes through various smoke heads and enters the filter chamber 2 through the annular flue body and the exhaust pipe. Multiple smoke heads are set up and distributed inside the kiln body, so that the flue gas, whether distributed in the upper, lower, or middle parts of the kiln body, can be quickly and completely absorbed and discharged, thereby improving the smoke exhaust efficiency.

[0018] 2. In this utility model, a water pump, in conjunction with a connecting pipe 2, pumps water from filter chamber 1 into a water storage chamber, which is then sprayed out by various nozzles. Simultaneously, a motor and gears, in conjunction with various toothed grooves, drive the water storage chamber to rotate, and each nozzle moves with the water storage chamber, thereby expanding the spray range of the flue gas and ensuring uniform spraying of the flue gas in filter chamber 2. This improves the filtration effect and efficiency, causing particulate matter in the flue gas to be settled on filter screen 1, thus filtering and cooling the flue gas. Wastewater falls from filter chamber 2 back into filter chamber 1, is filtered by filter screen 1, and is then pumped out by the water pump in conjunction with the connecting pipe 2 for recycling, saving water resources. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of filter chamber one and filter chamber two in this utility model;

[0022] Figure 3 This is a cross-sectional view of the kiln body in this utility model;

[0023] Figure 4 This is a cross-sectional view of filter chamber one and filter chamber two in this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the water storage tank and filter screen in this utility model;

[0025] Figure 6 This is a cross-sectional view of the inner shell in this utility model;

[0026] Figure 7 This is a schematic diagram of the water storage tank in this utility model.

[0027] The attached figures are labeled as follows:

[0028] 1. Kiln body; 2. Kiln door; 3. Filter chamber one; 4. Filter chamber two; 5. Water pump; 6. Connecting pipe one; 7. Connecting pipe two; 8. Sealing cover; 9. Inner shell; 10. Heating wire; 11. Placement plate; 12. Annular flue body; 13. Smoke pipe; 14. Smoke head; 15. Exhaust pipe; 16. Connecting chamber; 17. Exhaust pipe; 18. Filter screen; 19. Water storage tank; 20. Gear; 21. Nozzle; 22. Exhaust fan; 23. Exhaust fan. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] An electric kiln with an annular flue, such as Figures 1-7 As shown, the furnace includes a kiln body 1 and a filter chamber 3. A filter chamber 4 is fixedly installed on the upper surface of the filter chamber 3. An inner shell 9 is fixedly installed inside the kiln body 1. A furnace door 2 is connected to the kiln body 1 near the front surface via a hinge. Several heating wires 10 are installed at the bottom inside the kiln body 1. A placement plate 11 is fixedly connected to the inner wall of the kiln body 1 near the bottom. An annular flue body 12 is fixedly installed at the top inside the kiln body 1. Several smoke pipes 13 are fixedly connected to the bottom surface of the annular flue body 12 and inside the inner shell 9. Several smoke heads 14 are fixedly connected to the outer walls of the smoke pipes 13. A one-way valve is installed on the outer walls of the smoke heads 14. Sprayers 21 are fixedly installed inside both the filter chamber 4 and the filter chamber 3. A spraying mechanism is provided at the top inside the filter chamber 4. The spraying mechanism includes a water storage tank 19.

[0031] The one-way valve prevents the smoke drawn into the smoke pipe 13 through the smoke inlet 14 from flowing back into the kiln body 1.

[0032] A connecting chamber 16 is fixedly installed on the upper surface of filter chamber 2 4. An exhaust fan 23 is installed inside the connecting chamber 16. An exhaust pipe 15 is fixedly connected to the upper surface of the connecting chamber 16, and the end of the exhaust pipe 15 away from the connecting chamber 16 is fixedly connected to the annular flue body 12. An exhaust pipe 17 is fixedly connected to the outer wall of filter chamber 2 4 near the bottom. An exhaust fan 22 is installed inside the exhaust pipe 17.

[0033] In use, the product to be fired is placed on the placement plate 11 and the furnace door 2 is closed. The placement plate 11 is heated and fired by the heating wire 10. During the firing process, the exhaust fan 23, together with the exhaust pipe 15, the annular flue body 12 and each smoke pipe 13, absorbs the flue gas in the kiln body 1. The flue gas is drawn into the smoke pipe 13 through each smoke head 14 and enters the filter chamber 2 4 through the annular flue body 12 and the exhaust pipe 15.

[0034] Multiple smoke extraction heads 14 are installed inside the kiln body 1, so that the flue gas, whether located in the upper, lower or middle part of the kiln body 1, can be quickly and completely absorbed and discharged, thus improving the smoke extraction efficiency.

[0035] The water storage tank 19 is rotatably connected to the top of the filter chamber 2 4. The inner wall of the filter chamber 1 3 is rotatably connected to the gear 20 via a shaft. The outer wall of the water storage tank 19 has several toothed grooves, and the gear 20 meshes with the toothed grooves. A motor is installed on the upper surface of the filter chamber 2 4, and the output end of the motor is connected to the gear 20. Several nozzles 21 are fixedly connected to the bottom surface and inner wall of the water storage tank 19. One-way valves 2 are installed on the outer wall of each nozzle 21, which allow water to be sprayed out in one direction through each nozzle 21.

[0036] The motor model is SGMPS.

[0037] A water pump 5 is installed on one side of filter chamber 3. One end of the water pump 5 is fixedly connected to a connecting pipe 7, and the end of the connecting pipe 7 away from the water pump 5 is fixedly connected to filter chamber 3. The other end of the water pump 5 is fixedly connected to a connecting pipe 6, and the end of the connecting pipe 6 away from the water pump 5 is fixedly connected to filter chamber 4. Both filter chamber 3 and filter chamber 4 have sealing covers 8 fixedly connected to their outer walls by screws. Both filter chamber 3 and filter chamber 4 have filter screens 18 fixedly installed inside. A water inlet pipe is fixedly connected to the outer wall of filter chamber 3, and water can be added to filter chamber 3 through the water inlet pipe. The sealing cover 8 can be removed from filter chamber 3 to clean the filter screen 18 inside filter chamber 3. Similarly, the filter screen 18 inside filter chamber 4 can be cleaned.

[0038] Specifically, after the flue gas is drawn into the second filter chamber 4, the water pump 5, in conjunction with the connecting pipe 7, pumps the water in the first filter chamber 3 into the water storage chamber 19 through the connecting pipe 6, and sprays it out from each nozzle 21. At the same time, the motor drives the gear 20 to rotate, which, in conjunction with each tooth groove, drives the water storage chamber 19 to rotate. Each nozzle 21 moves with the water storage chamber 19, which can expand the spray range of the flue gas and spray the flue gas in the second filter chamber 4 evenly, improving the filtration effect and efficiency. This causes the particulate dirt in the flue gas to be settled on the filter screen 18, filtering the flue gas and cooling it. During this process, the exhaust fan 22 is started at the same time, and the filtered flue gas is discharged from the exhaust pipe 17.

[0039] Wastewater falls into filter chamber 3 through filter chamber 2 4, is filtered by filter screen 18, and is then pumped out by water pump 5 in conjunction with connecting pipe 2 7 for recycling, thus saving water resources.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An electric kiln with an annular flue, comprising a kiln body (1) and a filter chamber (3), characterized in that, A filter chamber 2 (4) is fixedly installed on the upper surface of the filter chamber 1 (3). An inner shell (9) is fixedly installed inside the kiln body (1). A furnace door (2) is connected to the inside of the kiln body (1) near the front end surface via a hinge. Several electric heating wires (10) are installed at the bottom inside the kiln body (1). A placement plate (11) is fixedly connected to the inner wall of the kiln body (1) near the bottom. An annular flue body (12) is fixedly installed at the top inside the kiln body (1). Several smoke pipes (13) are fixedly connected to the bottom surface of the annular flue body (12) and inside the inner shell (9). Several smoke heads (14) are fixedly connected to the outer walls of several smoke pipes (13). A one-way valve 1 is installed on the outer walls of several smoke heads (14). Both filter chamber 2 (4) and filter chamber 1 (3) are fixedly equipped with nozzles (21). The top of filter chamber 2 (4) is equipped with a spraying mechanism, which includes a water storage tank (19).

2. The electric kiln with an annular flue according to claim 1, characterized in that, A connecting chamber (16) is fixedly installed on the upper surface of the filter chamber 2 (4), and an exhaust fan (23) is installed inside the connecting chamber (16).

3. An electric kiln with an annular flue according to claim 2, characterized in that, The upper surface of the connecting chamber (16) is fixedly connected to a smoke exhaust pipe (15), and the end of the smoke exhaust pipe (15) away from the connecting chamber (16) is fixedly connected to an annular flue body (12). The outer wall of the filter chamber (4) is fixedly connected to a smoke outlet pipe (17) near the bottom, and an exhaust fan (22) is installed inside the smoke outlet pipe (17).

4. An electric kiln with an annular flue according to claim 1, characterized in that, The water storage tank (19) is rotatably connected to the top of the filter tank (4). The inner wall of the filter tank (3) is rotatably connected to a gear (20) via a shaft. The outer wall of the water storage tank (19) has several toothed grooves, and the gear (20) meshes with several toothed grooves. A motor is installed on the upper surface of the filter chamber 2 (4), and the output end of the motor is connected to the gear (20).

5. An electric kiln with an annular flue according to claim 1, characterized in that, The bottom surface and inner wall of the water storage tank (19) are fixedly connected to several nozzles (21), and the outer wall of each nozzle (21) is equipped with a one-way valve.

6. An electric kiln with an annular flue according to claim 1, characterized in that, A water pump (5) is installed on one side of the filter chamber (3). One end of the water pump (5) is fixedly connected to a connecting pipe (7), and the end of the connecting pipe (7) away from the water pump (5) is fixedly connected to the filter chamber (3).

7. An electric kiln with an annular flue according to claim 6, characterized in that, The other end of the water pump (5) is fixedly connected to a connecting pipe (6), and the end of the connecting pipe (6) away from the water pump (5) is fixedly connected to the filter chamber (4). The outer walls of the filter chamber (3) and the filter chamber (4) are both fixedly connected to a sealing cover (8) by screws. The filter screen (18) is fixedly installed inside the filter chamber (3) and the filter chamber (4). The outer wall of the filter chamber (3) is fixedly connected to a water supply pipe.

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