High-efficiency heat exchange small soda drying fluidized bed hot blast stove

Abstract

The utility model relates to the field of hot -blast stove discloses soda drying fluidized bed hot -blast stove of high efficiency heat transfer, including bottom plate, the top fixedly connected with fan of bottom plate, the top fixedly connected with furnace body of bottom plate, the top of bottom plate is provided with detection mechanism, the detection mechanism includes detection box, one side outer wall fixedly connected in the output end outer wall of fan of detection box, the other side outer wall fixedly connected in the inner wall of furnace body, the bottom fixedly connected with reaction cavity of detection box, the front side of reaction cavity is provided with knock ball. In the utility model, through the detection box is directly connected in series between the hot -blast channel outer wall of fan and furnace body, and sets up the reaction cavity of filling citric acid in the detection box bottom, makes hot -blast to leak soda to be able to and citric acid reaction generates carbon dioxide, thereby promotes diaphragm, warning rod and hinged plate linkage, makes knock ball knock the metal plate and sends out the sound, realizes the alarm of leakage instant.

Description

Technical Field

[0001] This utility model relates to the field of hot air furnaces, and in particular to a high-efficiency heat exchange sodium bicarbonate drying fluidized bed hot air furnace. Background Technology

[0002] The fluidized bed hot air furnace for baking soda drying is a key piece of equipment in the baking soda production process. Its core principle is that hot air from the furnace enters the fluidized bed, allowing the baking soda particles to fully contact the hot air in a fluidized state. This gas-solid two-phase heat exchange enables moisture evaporation, resulting in dried baking soda. Due to its high drying efficiency and large material throughput, this equipment is widely used in the large-scale production of baking soda in the chemical and food industries.

[0003] In existing technologies, the typical process of using a hot air furnace for drying sodium bicarbonate in a fluidized bed is as follows: the hot air furnace heats the air to a set temperature by burning fuel (such as natural gas or coal) to form a hot air stream; the hot air stream is transported through pipes to the bottom of the fluidized bed, passes through a distribution plate, and comes into contact with the wet sodium bicarbonate particles in the fluidized bed, where heat exchange is completed in a fluidized state, removing moisture from the particle surface; the exhaust gas after heat exchange is treated and then discharged, and the dried sodium bicarbonate particles are collected from the fluidized bed discharge port.

[0004] However, the hot air delivery pipeline between the hot blast stove and the fluidized bed lacks a dedicated leak detection device. When baking soda leaks due to poor sealing, the leaked baking soda cannot be detected in time. Therefore, a high-efficiency heat exchange baking soda drying fluidized bed hot blast stove is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a high-efficiency heat exchange sodium bicarbonate drying fluidized bed hot air furnace, which aims to solve the problem that leaked sodium bicarbonate cannot be detected in time in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency heat exchange sodium bicarbonate drying fluidized bed hot air furnace, comprising a base plate, a fan fixedly connected to the top of the base plate, a furnace body fixedly connected to the top of the base plate, a detection mechanism provided above the base plate, the detection mechanism comprising a detection box, one outer wall of the detection box being fixedly connected to the outer wall of the output end of the fan, and the other outer wall being fixedly connected to the inner wall of the furnace body, a reaction chamber being fixedly connected to the bottom of the detection box, a striking ball being provided on the front side of the reaction chamber, and a metal plate being provided below the striking ball.

[0007] As a further description of the above technical solution: a hinge seat is fixedly connected to the outer wall of the detection box, a hinge plate is hinged to the outer wall of the hinge seat, and the outer wall of the striking ball is fixedly connected to the outer wall of the hinge plate.

[0008] As a further description of the above technical solution: the top of the metal plate is fixedly connected to the bottom outer wall of the hinge seat.

[0009] As a further description of the above technical solution: a fixing ring is fixedly connected to the inner wall of the detection box, a diaphragm is inserted into the inner wall of the fixing ring, a warning rod is fixedly connected to the outer wall of the diaphragm, and the end of the warning rod away from the diaphragm contacts the hinge plate.

[0010] As a further description of the above technical solution: an auxiliary mechanism is provided above the base plate, the auxiliary mechanism including a drying box, the bottom of the drying box being fixedly connected to the top of the detection box, a transmission pipe being fixedly connected to the side of the drying box, and the end of the transmission pipe away from the drying box being fixedly connected to the inner wall of the detection box.

[0011] As a further description of the above technical solution: the shape of the transmission tube is serpentine.

[0012] As a further description of the above technical solution: an air intake fan is fixedly connected to the top inner wall of the drying box, and a sealing door is hinged to the side inner wall of the drying box.

[0013] As a further description of the above technical solution: a one-way valve is fixedly connected to the inner wall of the drying box, and the one-way valve is fixedly connected to the transmission pipe.

[0014] This utility model has the following beneficial effects: 1. In this utility model, the detection box is directly connected in series on the outer wall of the hot air channel between the blower and the furnace body, and a reaction chamber filled with citric acid is set at the bottom of the detection box. Once the hot air leaks baking soda, it will react with the citric acid to generate carbon dioxide, thereby driving the diaphragm, warning rod and hinge plate to work together, so that the striking ball strikes the metal plate to make a sound, realizing an immediate alarm for leakage.

[0015] 2. In this utility model, the drying box is connected to the detection box through a serpentine transfer tube and has a built-in desiccant and air intake fan. It can deliver dry air into the detection box during non-detection periods to quickly remove residual moisture. The combination of the serpentine tube and the one-way valve prevents moisture backflow, and the sealed door facilitates the replacement of the desiccant, thereby keeping the inside of the detection box dry for a long time, reducing the corrosion of the diaphragm and metal parts, and extending the service life of the equipment. Attached Figure Description

[0016] Figure 1 This is a front view of the high-efficiency heat exchange sodium bicarbonate drying fluidized bed hot air furnace proposed in this utility model. Figure 2 This is a schematic diagram of the high-efficiency heat exchange sodium bicarbonate drying fluidized bed hot air furnace proposed in this utility model. Figure 3This is a rear view of the high-efficiency heat exchange sodium bicarbonate drying fluidized bed hot air furnace proposed in this utility model. Figure 4 The high-efficiency heat exchange sodium bicarbonate drying fluidized bed hot air furnace proposed in this utility model Figure 2 Enlarged view of point A in the middle; Figure 5 The high-efficiency heat exchange sodium bicarbonate drying fluidized bed hot air furnace proposed in this utility model Figure 3 Enlarged view of section B in the middle.

[0017] Legend: 1. Base plate; 2. Fan; 3. Furnace body; 4. Detection mechanism; 401. Detection box; 402. Fixing ring; 403. Diaphragm; 404. Warning bar; 405. Hinge seat; 406. Hinge plate; 407. Striking ball; 408. Metal plate; 409. Reaction chamber; 5. Auxiliary mechanism; 501. Drying box; 502. Air intake fan; 503. Transmission pipe; 504. One-way valve; 505. Sealing door. Detailed Implementation

[0018] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a high-efficiency heat exchange sodium bicarbonate drying fluidized bed hot air furnace, including a base plate 1, a fan 2 fixedly connected to the top of the base plate 1 for transmitting hot air, a furnace body 3 fixedly connected to the top of the base plate 1, the fan 2 transmitting hot air to the furnace body 3 through a pipe, a detection mechanism 4 provided above the base plate 1, the detection mechanism 4 including a detection box 401, one outer wall of the detection box 401 fixedly connected to the outer wall of the output end of the fan 2, and the detection box 401 sleeved on the outside of the pipe transmitting hot air for... For leak detection, the outer wall on the other side is fixedly connected to the inner wall of the furnace body 3. The bottom of the detection box 401 is detachably fixed to the reaction chamber 409 by bolts. The bottom inner wall of the reaction chamber 409 is filled with citric acid. If a leak occurs, baking soda will react with citric acid to generate carbon dioxide. A striking ball 407 is set on the front side of the reaction chamber 409, and a metal plate 408 is set below the striking ball 407. The expansion of the air in the detection box 401 will cause the striking ball 407 to strike the metal plate 408 and make a sound to serve as an alert.

[0020] Reference Figure 3 - Figure 5The outer wall of the detection box 401 is fixedly connected to a hinge seat 405, and a hinge plate 406 is hinged to the outer wall of the hinge seat 405. The hinge plate 406 can move on the hinge seat 405. The outer wall of the striking ball 407 is fixedly connected to the outer wall of the hinge plate 406. The rotation of the hinge plate 406 will cause the striking ball 407 to strike the metal plate 408. The top of the metal plate 408 is fixedly connected to the bottom outer wall of the hinge seat 405, which achieves a fixing effect. The inner wall of the detection box 401 is fixedly connected to... A fixing ring 402 is attached, and a diaphragm 403 is inserted into the inner wall of the fixing ring 402. When the carbon dioxide inside the detection box 401 increases, it will push the diaphragm 403 to move. A warning rod 404 is fixedly connected to the outer wall of the diaphragm 403. The displacement of the diaphragm 403 will cause the warning rod 404 to move. The end of the warning rod 404 away from the diaphragm 403 will contact the hinge plate 406. The displacement of the warning rod 404 will push the hinge plate 406, causing the hinge plate 406 to rotate around the hinge seat 405.

[0021] Reference Figure 3 - Figure 5 An auxiliary mechanism 5 is provided above the base plate 1. The auxiliary mechanism 5 includes a drying box 501. The bottom of the drying box 501 is fixedly connected to the top of the detection box 401. A transfer tube 503 is fixedly connected to the side of the drying box 501. During non-detection periods, the drying box 501 can be dried to ensure subsequent use. The inside of the drying box 501 contains quicklime wrapped in non-woven fabric for drying the air. Other desiccants can also be selected. Dry air can be transferred to the detection box 401 through the transfer tube 503. The membrane 403 can also be removed to avoid affecting the use of the detection mechanism 4. The end away from the drying box 501 is fixedly connected to the inner wall of the detection box 401. The shape of the transmission pipe 503 is serpentine. The serpentine design is to prevent impurities in the detection box 401 from flowing back into the drying box 501. An air intake fan 502 is fixedly connected to the top inner wall of the drying box 501. The air intake fan 502 is used to draw in external air for subsequent drying. A sealing door 505 is hinged to the inner wall of the side of the drying box 501 for easy opening and closing and replacement of desiccant. A one-way valve 504 is fixedly connected to the inner wall of the drying box 501. The one-way valve 504 is fixedly connected to the transmission pipe 503 to prevent backflow.

[0022] Working principle: When the hot air furnace is running, the blower 2 sends hot air into the furnace body 3. Before entering the furnace body 3, the hot air passes through the detection box 401. The detection box 401 is equipped with a diaphragm 403, which is fixed to the inner wall of the detection box 401 by a fixing ring 402. When hot air leaks in the detection box 401, the internal pressure increases, pushing the diaphragm 403 to bulge outward. The diaphragm 403 drives the warning rod 404 to move outward, thereby pushing the hinge plate 406 to rotate around the hinge seat 405. The striking ball 407 on the hinge plate 406 falls down and strikes the metal plate 408, emitting a warning sound to remind the operator to perform timely maintenance.

[0023] After the test is completed, if it is necessary to dry the inside of the test box 401, the air intake fan 502 can be turned on to draw outside air into the drying box 501. The drying box 501 contains desiccant. After the air is dried, it enters the test box 401 through the serpentine transmission tube 503 to carry away the residual moisture. The one-way valve 504 prevents moisture backflow and ensures the drying effect. The sealing door 505 facilitates the replacement of the desiccant.

[0024] It is worth noting that in this embodiment, the electrical equipment is a common device in the prior art, and the model used can be customized according to actual usage requirements. The power supply interface of the electrical equipment in this utility model is connected to the power supply system through a switch (not shown in the figure) and a wire (not shown in the figure) to realize its control. The circuits and controls involved are all prior art and are known in the current field, so they will not be described in detail here.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency heat exchange sodium bicarbonate drying fluidized bed hot air furnace, comprising a base plate (1), characterized in that: A fan (2) is fixedly connected to the top of the base plate (1), a furnace body (3) is fixedly connected to the top of the base plate (1), and a detection mechanism (4) is provided above the base plate (1). The detection mechanism (4) includes a detection box (401). One side of the outer wall of the detection box (401) is fixedly connected to the outer wall of the output end of the blower (2), and the other side of the outer wall is fixedly connected to the inner wall of the furnace body (3). A reaction chamber (409) is fixedly connected to the bottom of the detection box (401). A striking ball (407) is provided on the front side of the reaction chamber (409), and a metal plate (408) is provided below the striking ball (407).

2. The high-efficiency heat exchange sodium bicarbonate drying fluidized bed hot air furnace according to claim 1, characterized in that: The outer wall of the detection box (401) is fixedly connected to a hinge seat (405), and the outer wall of the hinge seat (405) is hinged to a hinge plate (406). The outer wall of the striking ball (407) is fixedly connected to the outer wall of the hinge plate (406).

3. The high-efficiency heat exchange sodium bicarbonate drying fluidized bed hot air furnace according to claim 1, characterized in that: The top of the metal plate (408) is fixedly connected to the bottom outer wall of the hinge seat (405).

4. The high-efficiency heat exchange sodium bicarbonate drying fluidized bed hot air furnace according to claim 1, characterized in that: The inner wall of the detection box (401) is fixedly connected to a fixing ring (402), a diaphragm (403) is inserted into the inner wall of the fixing ring (402), and a warning rod (404) is fixedly connected to the outer wall of the diaphragm (403). The end of the warning rod (404) away from the diaphragm (403) is in contact with the hinge plate (406).

5. The high-efficiency heat exchange sodium bicarbonate drying fluidized bed hot air furnace according to claim 1, characterized in that: An auxiliary mechanism (5) is provided above the base plate (1). The auxiliary mechanism (5) includes a drying box (501). The bottom of the drying box (501) is fixedly connected to the top of the detection box (401). A transmission pipe (503) is fixedly connected to the side of the drying box (501). One end of the transmission pipe (503) away from the drying box (501) is fixedly connected to the inner wall of the detection box (401).

6. The high-efficiency heat exchange sodium bicarbonate drying fluidized bed hot air furnace according to claim 5, characterized in that: The transmission tube (503) is serpentine in shape.

7. The high-efficiency heat exchange sodium bicarbonate drying fluidized bed hot air furnace according to claim 6, characterized in that: An air intake fan (502) is fixedly connected to the top inner wall of the drying box (501), and a sealing door (505) is hinged to the side inner wall of the drying box (501).

8. The high-efficiency heat exchange sodium bicarbonate drying fluidized bed hot air furnace according to claim 5, characterized in that: A one-way valve (504) is fixedly connected to the inner wall of the drying box (501), and the one-way valve (504) is fixedly connected to the transmission pipe (503).

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