Novel aldehyde mud recovery device

Abstract

The utility model relates to the technical field of chemical industry production, in particular to a novel aldehyde mud recovery device which heats aldehyde mud through electric heating, is higher in response speed, is higher in treatment capacity under the same volume compared with a traditional steam dryer, treats the aldehyde mud with the same weight, and is lower in energy consumption required by electric heating. Meanwhile, the problem of easy spontaneous combustion of aldehyde mud discharged by the steam dryer is solved; comprising a recovery tank; the device further comprises a sealing mechanism, a heating mechanism and a stirring mechanism, the sealing mechanism is installed on the recycling tank and facilitates addition of aldehyde mud, the heating mechanism is installed on the recycling tank and heats the aldehyde mud, and the stirring mechanism is installed on the sealing mechanism and stirs the aldehyde mud.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical production, in particular to a novel aldehyde sludge recovery device. Background Art

[0002] In the traditional furfural production process, the crude aldehyde is neutralized by adding soda ash and then dehydrated and refined to obtain the finished furfural. At the same time, aldehyde sludge is continuously produced. 10 kg of sodium carbonate is required to neutralize each ton of crude aldehyde to achieve the national standard of 0.015% acidity. The amount of aldehyde sludge produced is 1%. The amount of aldehyde sludge produced is large and the processing cost is high.

[0003] Existing aldehyde sludge recovery devices, such as the aldehyde sludge recovery device for continuous production disclosed in the utility model patent with application number 202221146303.0, have a main structure including a collecting and distributing tank connected to the bottom of the refining kettle, the collecting and distributing tank is at negative pressure, and the negative pressure of the collecting and distributing tank is less than the negative pressure of the refining kettle, and the air outlet of the collecting and distributing tank is connected to the vacuum pump through a first pipe; when in use, the difference between the vacuum degree of -0.062MPa at the bottom of the furfural refining kettle and the vacuum degree of -0.095MPa in the aldehyde sludge collecting and distributing tank is utilized to suck the aldehyde sludge and a small amount of entrained furfural in the kettle into the collecting and distributing tank without stopping production, and steam is introduced into the heating chamber of the collecting and distributing tank for heating to prevent aldehyde sludge from condensing. At the same time, under vacuum conditions, the entrained furfural is evaporated and escapes, enters the heat exchange condensation through the pipeline from the tank top outlet, and enters the residual aldehyde recovery tank, and is regularly discharged from the bottom together with the collected liquid at the bottom of the vacuum tank into the crude aldehyde tank for recycling.

[0004] However, the dried aldehyde mud is discharged into the atmosphere due to its high temperature and comes into contact with air. If it is over-steamed, it will spontaneously combust. In addition, the aldehyde mud is usually dried by steam drying to dry out the moisture in the aldehyde mud. The amount of steam introduced is often too large, resulting in energy waste. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a new aldehyde sludge recovery device that heats aldehyde sludge through electric heating, has a faster response speed, and has a greater processing capacity for the same volume than traditional steam dryers. When processing the same weight of aldehyde sludge, the energy consumption required for electric heating is lower. At the same time, it also solves the problem that aldehyde sludge discharged from the steam dryer is prone to spontaneous combustion.

[0006] The utility model discloses a novel aldehyde mud recovery device, comprising a recovery tank; a sealing mechanism, a heating mechanism and a stirring mechanism, wherein the sealing mechanism is installed on the recovery tank and is convenient for adding aldehyde mud, the heating mechanism is installed on the recovery tank and heats the aldehyde mud, and the stirring mechanism is installed on the sealing mechanism and stirs the aldehyde mud; a staff member adds the aldehyde mud into the recovery tank through the sealing mechanism, starts the heating mechanism to heat the aldehyde mud, and then starts the stirring mechanism to stir the aldehyde mud, and nitrogen is introduced into the aldehyde mud through the recovery tank, and the generated organic gas is discharged through the sealing mechanism, and then discharged through the recovery tank after the aldehyde mud is cooled.

[0007] Preferably, the recovery tank includes a tank body, four sets of connecting plates, a first connecting seat, a discharge pipe N1, a nitrogen inlet pipe N2 and a temperature measuring tube N7. A cavity is provided inside the tank body. The four sets of connecting plates are all installed on the tank body. Positioning holes are opened on the four sets of connecting plates. The bottom end of the first connecting seat is connected to the top interior of the tank body, the top end of the discharge pipe N1 is connected to the bottom interior of the tank body, the top end of the nitrogen inlet pipe N2 is connected to the bottom interior of the tank body, and the temperature measuring tube N7 is installed at the bottom end of the cavity inside the tank body. First, bolts are passed through the positioning holes of the four sets of connecting plates. , fix the tank body on the working surface, turn on the heating mechanism and the stirring mechanism, the heating mechanism heats the tank body, and after nitrogen is introduced into the cavity of the tank body through the nitrogen inlet pipe N2 for 1-2 minutes, the aldehyde mud enters the cavity of the tank body through the sealing mechanism, and the drying condition of the aldehyde mud is observed through the temperature measuring tube N7. When the aldehyde mud is dried to about 120℃ on the connecting plate, turn off the heating mechanism, and at the same time, introduce nitrogen through the nitrogen inlet pipe N2 to cool the aldehyde mud. When the aldehyde mud is cooled to about 80℃, open the discharge pipe N1 to discharge the dried aldehyde mud.

[0008] Preferably, the sealing mechanism includes a second connecting seat, a sealing cover, a first fixed seat, a feed pipe N3, a temperature measuring tube N4, a spare pipe N5 and an organic gas outlet pipe N6, the bottom end of the second connecting seat is connected to the top interior of the first connecting seat, the bottom end of the sealing cover is connected to the top interior of the second connecting seat, the bottom end of the first fixed seat is connected to the top interior of the sealing cover, the bottom end of the feed pipe N3 is connected to the top interior of the sealing cover, the temperature measuring tube N4 is installed on the sealing cover, the spare pipe N5 is installed on the sealing cover, and the bottom end of the organic gas outlet pipe N6 is connected to the top interior of the sealing cover; the staff transports the aldehyde sludge into the cavity of the tank body through the feed pipe N3, observes the drying condition of the aldehyde sludge through the temperature measuring tube N4, and the organic gas generated during the drying process of the aldehyde sludge is discharged through the organic gas outlet pipe N6, and the subsequent organic gas treatment device recovers the organic gas.

[0009] Preferably, the heating mechanism includes an electric heater, a junction box and a thermocouple, the electric heater is installed on the outer wall of the tank body, the junction box is installed on the electric heater, and the thermocouple is installed on the electric heater; the junction box is connected to the power supply, the electric heater is started to heat the tank body, the temperature of the tank body is observed through the thermocouple, the temperature of the electric heater is set at 200°C, and the temperature of the tank body is maintained at 200°C. When the aldehyde sludge is dried to about 0°C on the connecting plate, the electric heating device outside the recovery device is turned off.

[0010] Preferably, the stirring mechanism includes a second fixed seat, a sleeve, a motor, a transmission shaft, multiple groups of stirring blades and spiral blades. The bottom end of the second fixed seat is connected to the top of the first fixed seat, the bottom end of the sleeve is connected to the top of the second fixed seat, the bottom end of the motor is connected to the top of the sleeve, the transmission shaft is rotatably installed in the sleeve and connected to the motor, multiple groups of stirring blades are installed on the transmission shaft, and the spiral blades are installed on the transmission shaft; start the motor, the motor drives the transmission shaft to rotate, the transmission shaft drives the multiple groups of stirring blades and spiral blades to rotate to stir the aldehyde mud, accelerate the drying of the aldehyde mud, and when the drying is completed, the transmission shaft drives the spiral blades to rotate to accelerate the discharge of the aldehyde mud.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the staff adds the aldehyde sludge into the recovery tank through the sealing mechanism, starts the heating mechanism to heat the aldehyde sludge, and then starts the stirring mechanism to stir the aldehyde sludge, and nitrogen is introduced into the aldehyde sludge through the recovery tank. The generated organic gas is discharged through the sealing mechanism, and then discharged through the recovery tank after the aldehyde sludge is cooled. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0013] Figure 2 It is a partially enlarged front cross-sectional structural diagram of the recovery tank, heating mechanism and stirring mechanism of the utility model;

[0014] Figure 3 It is a partially enlarged front view cross-sectional structural diagram of the recovery tank, sealing mechanism and stirring mechanism of the utility model;

[0015] Figure 4 This is a schematic diagram of the top view of the sealing mechanism of the utility model;

[0016] Figure 5 It is a partially enlarged left-side sectional structural diagram of the sealing mechanism of the utility model.

[0017] Markings in the accompanying drawings: 01, recovery tank; 11, tank body; 12, connecting plate; 13, first connecting seat; 14, discharge pipe N1; 15, nitrogen inlet pipe N2; 16, temperature measuring tube N7; 02, sealing mechanism; 21, second connecting seat; 22, sealing cover; 23, first fixed seat; 24, feed pipe N3; 25, temperature measuring tube N4; 26, spare pipe N5; 27, organic gas outlet pipe N6; 03, heating mechanism; 31, electric heater; 32, junction box; 33, thermocouple; 04, stirring mechanism; 41, second fixed seat; 42, sleeve; 43, motor; 44, transmission shaft; 45, stirring blade; 46, spiral blade. DETAILED DESCRIPTION

[0018] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0019] Example 1

[0020] The utility model discloses a novel aldehyde mud recovery device, comprising a recovery tank 01; further comprising a sealing mechanism 02, a heating mechanism 03 and a stirring mechanism 04, wherein the sealing mechanism 02 is mounted on the recovery tank 01 and is convenient for adding aldehyde mud, the heating mechanism 03 is mounted on the recovery tank 01 and heats the aldehyde mud, and the stirring mechanism 04 is mounted on the sealing mechanism 02 and stirs the aldehyde mud; the recovery tank 01 comprises a tank body 11, four groups of connecting plates 12, a first connecting seat 13, a discharge pipe N114, a nitrogen inlet pipe N215 and a temperature measuring tube N716, a cavity is provided inside the tank body 11, the four groups of connecting plates 12 are all mounted on the tank body 11, positioning holes are opened on the four groups of connecting plates 12, the bottom end of the first connecting seat 13 is connected to the top end of the tank body 11, and the discharge pipe The top of N114 is internally connected to the bottom end of the tank body 11, the top of the nitrogen inlet pipe N215 is internally connected to the bottom end of the tank body 11, and the temperature measuring tube N716 is installed at the bottom end of the cavity of the tank body 11; the sealing mechanism 02 includes a second connecting seat 21, a sealing cover 22, a first fixed seat 23, a feeding pipe N324, a temperature measuring tube N425, a spare pipe N526 and an organic gas outlet pipe N627, the bottom end of the second connecting seat 21 is internally connected to the top end of the first connecting seat 13, the bottom end of the sealing cover 22 is internally connected to the top end of the second connecting seat 21, the bottom end of the first fixed seat 23 is internally connected to the top end of the sealing cover 22, the bottom end of the feeding pipe N324 is internally connected to the top end of the sealing cover 22, and the temperature measuring tube N425 is installed on the sealing cover 2 2, the spare pipe N526 is installed on the sealing cover 22, and the bottom end of the organic gas outlet pipe N627 is connected to the top of the sealing cover 22; the heating mechanism 03 includes an electric heater 31, a junction box 32 and a thermocouple 33, the electric heater 31 is installed on the outer wall of the tank body 11, the junction box 32 is installed on the electric heater 31, and the thermocouple 33 is installed on the electric heater 31; when it is working, first, the tank body 11 is fixed on the working surface by passing the bolts through the positioning holes of the four groups of connecting plates 12, the stirring mechanism 04 is started, the junction box 32 is connected to the power supply, the electric heater 31 is started to heat the tank body 11, and the temperature of the electric heater 31 is set to 200°C. At the same time, the organic gas outlet pipe N627 is opened, and the nitrogen inlet pipe N 215 After nitrogen is introduced into the cavity of the tank body 11 for 1-2 minutes, the staff transports the aldehyde sludge into the cavity of the tank body 11 through the feed pipe N324, observes the drying condition of the aldehyde sludge through the temperature measuring tubes N716 and N425, observes the temperature of the tank body 11 through the thermocouple 33, and maintains the temperature of the tank body 11 at 200°C. The organic gas generated during the drying process of the aldehyde sludge is discharged through the organic gas outlet pipe N627, and the subsequent organic gas treatment device recovers the organic gas. When the aldehyde sludge is dried to about 120°C on the connecting plate, the heating mechanism 03 is turned off, and nitrogen is introduced through the nitrogen inlet pipe N215 to cool the aldehyde sludge. When the aldehyde sludge is cooled to about 80°C, the discharge pipe N114 is opened to discharge the dried aldehyde sludge.

[0021] Example 2

[0022] like Figures 1 to 5 As shown, a novel aldehyde mud recovery device of the present invention is based on Example 1; the stirring mechanism 04 includes a second fixed seat 41, a sleeve 42, a motor 43, a transmission shaft 44, multiple groups of stirring blades 45 and spiral blades 46, the bottom end of the second fixed seat 41 is connected to the top of the first fixed seat 23, the bottom end of the sleeve 42 is connected to the top of the second fixed seat 41, the bottom end of the motor 43 is connected to the top of the sleeve 42, the transmission shaft 44 is rotatably mounted in the sleeve 42 and connected to the motor 43, multiple groups of stirring blades 45 are mounted on the transmission shaft 44, and the spiral blades 46 are mounted on the transmission shaft 44; when it is working, first, the tank body 11 is fixed to the working surface by passing the bolts through the positioning holes of the four groups of connecting plates 12, the motor 43 is started, the motor 43 drives the transmission shaft 44 to rotate, and the transmission shaft 44 drives multiple groups of stirring blades 45 and spiral blades 46 to rotate, the junction box 32 is connected to the power supply, the electric heater 31 is started to heat the tank body 11, and the temperature of the electric heater 31 is set at 20 0℃, at the same time, open the organic gas outlet pipe N627, and after nitrogen is introduced into the cavity of the tank body 11 through the nitrogen inlet pipe N215 for 1-2 minutes, the staff will transport the aldehyde sludge into the cavity of the tank body 11 through the feed pipe N324, observe the drying of the aldehyde sludge through the temperature measuring tube N716 and the temperature measuring tube N425, observe the temperature of the tank body 11 through the thermocouple 33, and keep the temperature of the tank body 11 at 200℃. The transmission shaft 44 drives multiple groups of stirring blades 45 and spiral blades 46 to rotate to stir the aldehyde sludge. Stirring is performed to accelerate the drying of the aldehyde sludge. The organic gas generated during the drying process of the aldehyde sludge is discharged through the organic gas outlet pipe N627. The subsequent organic gas treatment device recovers the organic gas. When the aldehyde sludge is dried to about 120°C on the connecting plate, the heating mechanism 03 is turned off, and nitrogen is introduced through the nitrogen inlet pipe N215 to cool the aldehyde sludge. When the aldehyde sludge is cooled to about 80°C, the discharge pipe N114 is opened to discharge the dried aldehyde sludge. The transmission shaft 44 drives the spiral blade 46 to rotate to accelerate the discharge of the aldehyde sludge.

[0023] The electric motor 43 of the present invention is purchased on the market, and technicians in this industry only need to install and operate it according to the accompanying instruction manual, without the need for technicians in this field to make creative efforts.

[0024] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A novel aldehyde sludge recovery device, comprising a recovery tank (01); characterized in that: The device further comprises a sealing mechanism (02), a heating mechanism (03) and a stirring mechanism (04), wherein the sealing mechanism (02) is mounted on the recovery tank (01) and facilitates the addition of aldehyde sludge, the heating mechanism (03) is mounted on the recovery tank (01) and heats the aldehyde sludge, and the stirring mechanism (04) is mounted on the sealing mechanism (02) and stirs the aldehyde sludge; The recovery tank (01) includes a tank body (11), four groups of connecting plates (12), a first connecting seat (13), a discharge pipe N1 (14), a nitrogen inlet pipe N2 (15) and a temperature measuring tube N7 (16). A cavity is provided inside the tank body (11). The four groups of connecting plates (12) are all installed on the tank body (11). Positioning holes are opened on the four groups of connecting plates (12). The bottom end of the first connecting seat (13) is connected to the top end of the tank body (11). The top end of the discharge pipe N1 (14) is connected to the bottom end of the tank body (11). The top end of the nitrogen inlet pipe N2 (15) is connected to the bottom end of the tank body (11). The temperature measuring tube N7 (16) is installed at the bottom end of the cavity inside the tank body (11). The heating mechanism (03) comprises an electric heater (31), a junction box (32) and a thermocouple (33). The electric heater (31) is mounted on the outer wall of the tank body (11), the junction box (32) is mounted on the electric heater (31), and the thermocouple (33) is mounted on the electric heater (31).

2. A novel aldehyde sludge recovery device according to claim 1, characterized in that: The sealing mechanism (02) comprises a second connecting seat (21), a sealing cover (22), a first fixed seat (23), a feed pipe N3 (24), a temperature measuring pipe N4 (25), a spare pipe N5 (26) and an organic gas outlet pipe N6 (27). The bottom end of the second connecting seat (21) is connected to the interior of the top end of the first connecting seat (13), the bottom end of the sealing cover (22) is connected to the interior of the top end of the second connecting seat (21), the bottom end of the first fixed seat (23) is connected to the interior of the top end of the sealing cover (22), the bottom end of the feed pipe N3 (24) is connected to the interior of the top end of the sealing cover (22), the temperature measuring pipe N4 (25) is installed on the sealing cover (22), the spare pipe N5 (26) is installed on the sealing cover (22), and the bottom end of the organic gas outlet pipe N6 (27) is connected to the interior of the top end of the sealing cover (22).

3. A novel aldehyde sludge recovery device according to claim 2, characterized in that: The stirring mechanism (04) comprises a second fixed seat (41), a sleeve (42), a motor (43), a transmission shaft (44), a plurality of stirring blades (45) and a spiral blade (46). The bottom end of the second fixed seat (41) is connected to the top end of the first fixed seat (23), the bottom end of the sleeve (42) is connected to the top end of the second fixed seat (41), the bottom end of the motor (43) is connected to the top end of the sleeve (42), the transmission shaft (44) is rotatably mounted in the sleeve (42) and connected to the motor (43), the plurality of stirring blades (45) are all mounted on the transmission shaft (44), and the spiral blade (46) is mounted on the transmission shaft (44).

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