Waste heat recycling device for styrene-acrylic resin production

Abstract

The invention discloses a waste heat recycling device for styrene-acrylic resin production, and particularly relates to the technical field of styrene-acrylic resin production.The waste heat recycling device comprises a shell, a water outlet is fixedly connected to the middle side of the lower portion of the front end of the shell, a water inlet valve is fixedly connected to the left side of the upper portion of the front end of the shell, and a filtering device is fixedly connected to the middle side of the upper portion of the right end of the shell; an air inlet is fixedly connected to the right portion of the filtering device, a stirring device is installed in the middle of the upper end of the shell, and a U-shaped pipeline is jointly and fixedly connected to the middle of the left wall and the middle of the right wall of the shell. Gas for waste heat recovery is filtered through the filtering device, impurities are filtered out, the impurities cannot be attached to the wall of the U-shaped pipeline, and the heat transfer efficiency of the U-shaped pipeline cannot be affected, so that smooth operation of the waste heat recovery system is ensured, and the overall efficiency of waste heat recovery is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of styrene-acrylic resin production, and particularly relates to a waste heat recovery and utilization device for styrene-acrylic resin production. Background Technique

[0002] Styrene-acrylic resin is a polymer copolymerized from styrene, acrylic acid and its esters. It belongs to a class of water-soluble acrylic resins and is a typical alkali-soluble thermoplastic resin.

[0003] A large amount of waste heat is generated during the production of styrene-acrylic resin. If this waste heat is not effectively recovered and utilized, it will not only cause great waste of energy, but may also lead to too high a temperature in the production workshop, affecting the normal operation of production equipment and the working environment of operators.

[0004] The medium carried by the waste heat generated during the production of styrene-acrylic resin often contains various impurities, such as unreacted raw material particles, catalyst residues, and by-products generated during the production process, etc.; if these impurities directly enter the waste heat recovery system, they will cause serious wear and blockage to the pipes, heat exchange equipment, etc. of the recovery device, reducing the operating efficiency and service life of the waste heat recovery device, increasing the maintenance cost of the equipment, so a waste heat recovery and utilization device for styrene-acrylic resin production is needed. Summary of the Invention

[0005] The main purpose of the present invention is to provide a waste heat recovery and utilization device for styrene-acrylic resin production, which can effectively solve the problems proposed above.

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

[0007] A waste heat recovery and utilization device for styrene-acrylic resin production includes a housing. A water outlet is fixedly connected to the middle side of the lower part of the front end of the housing, a water inlet valve is fixedly connected to the upper left side of the front end of the housing, a filtering device is fixedly connected to the upper middle side of the right end of the housing, an air inlet is fixedly connected to the right part of the filtering device, a stirring device is installed in the middle of the upper end of the housing, and a U-shaped pipe is fixedly connected to the middle parts of the left and right walls of the housing.

[0008] Preferably, the stirring device includes a stepping motor and two stirring rods. The stepping motor is fixedly connected to the middle side of the rear part of the upper end of the housing. The two stirring rods are respectively rotatably connected to the front and rear parts of the middle sides of the upper and lower ends of the housing. Pulley wheels are fixedly connected to the upper parts of the outer surfaces of the two stirring rods, and a transmission belt is wound around and connected between the two pulley wheels.

[0009] Preferably, the output end of the stepping motor is fixedly connected to the rear stirring rod.

[0010] Preferably, the filtering device includes a filtering bin, which is fixedly connected to the middle side of the upper part of the right end of the housing. A cleaning mechanism is fixedly connected to the middle of the upper end of the filtering bin. Metal filtering plates are respectively fixedly connected to the left and right parts of the top and bottom walls of the filtering bin. Oblique holes are formed in the left and right parts of the bottom wall of the filtering bin. A collecting mechanism is fixedly connected to the middle of the lower end of the filtering bin.

[0011] Preferably, the cleaning mechanism includes a driving motor, which is fixedly connected to the middle of the upper end of the filtering bin. The output end of the driving motor is fixedly connected to a reciprocating lead screw. A slider is slidably connected to the outer surface of the reciprocating lead screw. Cleaning brushes are fixedly connected to the left and right ends of the slider. Guide rods are slidably connected to the front and rear parts of the slider.

[0012] Preferably, the two guide rods are respectively fixedly connected to the middle sides of the front and rear parts of the top and bottom walls of the filtering bin. The lower end of the reciprocating lead screw is rotatably connected to the bottom wall of the filtering bin.

[0013] Preferably, the collecting mechanism includes a sliding shell, which is fixedly connected to the middle of the lower end of the filtering bin. An ash-dropping box is slidably connected to the inner cavity of the sliding shell. Magnetic sheets are fixedly connected to the rear end of the ash-dropping box and the middle of the rear wall of the sliding shell.

[0014] Preferably, the two oblique holes (43) are both communicated with the ash-dropping box (441).

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention filters the gas for waste heat recovery through the filtering device, filters out impurities, which prevents the impurities from adhering to the wall of the U-shaped pipe and affecting the heat transfer efficiency of the U-shaped pipe, thus ensuring the smooth operation of the waste heat recovery system and improving the overall efficiency of waste heat recovery.

[0017] At the same time, the water is stirred through the stirring device, which can make the water temperature distribution more uniform, avoid local overheating or overcooling, and improve the overall heat recovery efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is a schematic diagram of the internal perspective of the overall structure of the present invention;

[0020] Figure 3 is a schematic diagram of the structure of the stirring device of the present invention;

[0021] Figure 4 is a schematic diagram of the structure of the filtering device of the present invention;

[0022] Figure 5Schematic structural diagram of the metal filter plate of the present invention;

[0023] Figure 6 Schematic structural diagram of the cleaning mechanism of the present invention;

[0024] Figure 7 Schematic structural diagram of the collection mechanism of the present invention.

[0025] In the figure: 1. Outer shell; 2. U-shaped pipe; 3. Water outlet; 4. Filter device; 5. Air inlet; 6. Stirring device; 7. Water inlet valve; 61. Stepper motor; 62. Transmission belt; 63. Pulley; 64. Stirring rod; 41. Filter chamber; 42. Cleaning mechanism; 43. Oblique hole; 44. Collection mechanism; 45. Metal filter plate; 421. Driving motor; 422. Slide block; 423. Guide rod; 424. Reciprocating lead screw; 425. Ash cleaning brush; 441. Ash dropping box; 442. Slide shell; 443. Magnetic sheet. Detailed implementation manners

[0026] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with the specific implementation manners.

[0027] Embodiment 1

[0028] As Figure 1 and Figure 2 shown, a waste heat recovery and utilization device for the production of styrene resin includes an outer shell 1. A water outlet 3 is fixedly connected to the middle side of the lower part of the front end of the outer shell 1, a water inlet valve 7 is fixedly connected to the upper left side of the front end of the outer shell 1, a filter device 4 is fixedly connected to the middle side of the upper part of the right end of the outer shell 1, an air inlet 5 is fixedly connected to the right part of the filter device 4, a stirring device 6 is installed in the middle of the upper end of the outer shell 1, and a U-shaped pipe 2 is fixedly connected to the middle parts of the left and right walls of the outer shell 1.

[0029] Before the implementation of this device, the air inlet 5 needs to be connected to the air outlet of the relevant equipment for the production of styrene resin. After the connection is completed, cold water is injected into the water inlet valve 7 to make the cold water enter the outer shell 1, and then the styrene resin production equipment can be started.

[0030] The gas generated during production enters the air inlet 5, and the air inlet 5 then conveys the gas to the filter device 4 to filter the gas by the filter device 4. Then the gas enters the U-shaped pipe 2, and the heat of the gas itself is transferred from the surface of the U-shaped pipe 2 to the cold water in the outer shell 1, so that the cold water exchanges heat with the heat of the gas in the U-shaped pipe 2. Then the gas is discharged from the air outlet on the left side of the U-shaped pipe 2, realizing the recovery and utilization of the waste heat in the production of styrene resin.

[0031] When the device conducts waste heat recovery and utilization, the stirring device 6 can be started to rotate, so that the stirring device 6 stirs the cold water in the housing 1. This makes the water temperature distribution more uniform when the cold water absorbs the heat of the gas, avoiding local overheating or overcooling, and improving the overall heat recovery effect.

[0032] Furthermore, the filtering device 4 filters the gas, which can prevent impurities in the gas from entering the U-shaped pipe 2 and affecting the heat transfer effect of the U-shaped pipe 2. When filtering, it can also clean itself and sweep out the impurities, so that the filtering device 4 maintains a good filtering effect.

[0033] After the waste heat recovery is completed, the water outlet 3 can be opened to collect the water in the housing 1. When collecting, a bucket can be placed under the water outlet 3 for collection, and then the water can be utilized.

[0034] Embodiment 2

[0035] Furthermore, in order to achieve the purpose of the stirring device 6 stirring the water in the housing 1 to make the water temperature distribution more uniform and avoid local overheating or overcooling, refer to Figure 3 , the stirring device 6 includes a stepping motor 61 and two stirring rods 64. The stepping motor 61 is fixedly connected to the middle side of the rear part of the upper end of the housing 1. The two stirring rods 64 are respectively rotatably connected to the front and rear parts of the middle sides of the upper and lower ends of the housing 1. Pulley 63 is fixedly connected to the upper part of the outer surface of the two stirring rods 64, and a transmission belt 62 is wound and connected between the two pulleys 63; the output end of the stepping motor 61 is fixedly connected to the rear stirring rod 64.

[0036] When the gas in the U-shaped pipe 2 exchanges heat with water, start the output end of the stepping motor 61 to rotate. When the output end of the stepping motor 61 rotates, the power will be transmitted to the rear stepping motor 61 through the coupling, driving the rear stirring rod 64 to rotate. When the rear stirring rod 64 rotates, it will drive the pulley 63 connected to it to rotate. When the pulley 63 at the rear rotates, due to the winding connection with the transmission belt 62, the power will be transmitted to the pulley 63 at the front, so that the pulley 63 at the front drives the front stirring rod 64 to rotate, and the front and rear stirring rods 64 stir the water, which can make the water temperature distribution more uniform, avoid local overheating or overcooling, improve the overall heat recovery effect, and thus improve the heat recovery rate.

[0037] Furthermore, in order to achieve the purpose of the filtering device 4 filtering the gas, refer to Figure 4 and Figure 5, the filtering device 4 includes a filtering chamber 41, the filtering chamber 41 is fixedly connected to the middle side of the upper right end of the outer shell 1, a cleaning mechanism 42 is fixedly connected to the middle of the upper end of the filtering chamber 41, metal filtering plates 45 are fixedly connected to the left and right parts of the top and bottom walls of the filtering chamber 41 respectively, inclined holes 43 are formed in the left and right parts of the bottom wall of the filtering chamber 41, and a collecting mechanism 44 is fixedly connected to the middle of the lower end of the filtering chamber 41.

[0038] The gas enters the filtering chamber 41 from the air inlet 5, and then the gas is filtered by the metal filtering plates 45. Installing two metal filtering plates 45 can make the filtering effect better. Then the gas is transported from the air outlet of the filtering chamber 41 to the U-shaped pipe 2 for heat exchange.

[0039] When the metal filtering plates 45 filter the gas, the cleaning mechanism 42 can be started to move, so that the cleaning mechanism 42 cleans the surface of the metal filtering plates 45, and the impurities are swept down. The swept-down impurities will fall into the collecting mechanism 44 through the inclined holes 43, so that the collecting mechanism 44 collects the swept impurities.

[0040] Further, in order to achieve the purpose of the cleaning mechanism 42 cleaning the surface of the metal filtering plates 45 and the collecting mechanism 44 collecting the swept impurities, refer to Figure 6 and Figure 7 , the cleaning mechanism 42 includes a driving motor 421, the driving motor 421 is fixedly connected to the middle of the upper end of the filtering chamber 41, the output end of the driving motor 421 is fixedly connected with a reciprocating lead screw 424, a slider 422 is slidably connected to the outer surface of the reciprocating lead screw 424, dust cleaning brushes 425 are fixedly connected to the left and right ends of the slider 422, and guide rods 423 are slidably connected to the front and rear parts of the slider 422;

[0041] The two guide rods 423 are respectively fixedly connected to the middle sides of the front and rear parts of the top and bottom walls of the filtering chamber 41, and the lower end of the reciprocating lead screw 424 is rotatably connected to the bottom wall of the filtering chamber 41;

[0042] The collecting mechanism 44 includes a sliding shell 442, the sliding shell 442 is fixedly connected to the middle of the lower end of the filtering chamber 41, a dust falling box 441 is slidably connected to the inner cavity of the sliding shell 442, magnetic sheets 443 are fixedly connected to the rear end of the dust falling box 441 and the middle of the rear wall of the sliding shell 442 respectively. Among them, the two inclined holes (43) are both communicated with the dust falling box (441).

[0043] Start the drive motor 421 to move, so that the drive motor 421 drives the reciprocating lead screw 424 to rotate through the coupling. When the reciprocating lead screw 424 rotates, it will drive the slider 422 to move downward. The slider 422 then drives the dust cleaning brush 425 to move downward, so that the dust cleaning brush 425 sweeps the metal filter plate 45. When the slider 422 moves to the lowermost part, it will reverse direction and move upward, realizing reciprocating movement, so that the dust cleaning brush 425 can better sweep off the impurities adsorbed on the metal filter plate 45. The swept impurities will fall into the ash collection box 441 through the inclined holes 43, so that the ash collection box 441 collects the impurities. The ash collection box 441 can be taken out of the sliding shell 442 to achieve the purpose of pouring out the impurities collected in the ash collection box 441.

[0044] A shuttle is rotatably connected to the left part of the inner cavity in the middle of the slider 422. The shuttle is slidably connected to the spiral groove of the reciprocating lead screw 424, so as to achieve the purpose of driving the slider 422 to reciprocate when the reciprocating lead screw 424 rotates. And the guide rod 423 is used to ensure the stability of the slider 422 during sliding.

[0045] The positive magnetic sheet 443 is connected to the rear end of the ash collection box 441, while the negative magnetic sheet 443 is connected to the rear wall of the sliding shell 442. After the ash collection box 441 is taken out of the sliding shell 442 and then reinserted into the sliding shell 442, the two magnetic sheets 443 attract each other, and the ash collection box 441 is stably positioned in the sliding shell 442.

[0046] It should be particularly noted that the specific installation method, circuit connection method and control method of the drive motor 421 and the stepper motor 61 adopted in the present invention are all conventional designs, and the present invention will not be elaborated in detail.

[0047] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste heat recovery and utilization device for the production of styrene resin, comprising a housing (1), characterized in that: In the middle of the lower part of the front end of the housing (1), a water outlet (3) is fixedly connected. On the upper left side of the front end of the housing (1), a water inlet valve (7) is fixedly connected. In the middle of the upper part of the right end of the housing (1), a filtering device (4) is fixedly connected. On the right part of the filtering device (4), an air inlet (5) is fixedly connected. In the middle of the upper end of the housing (1), a stirring device (6) is installed.

2. The waste heat recovery and utilization device according to claim 1, characterized in that: The stirring device (6) includes a stepping motor (61) and two stirring rods (64). The stepping motor (61) is fixedly connected to the middle of the rear part of the upper end of the housing (1). The two stirring rods (64) are respectively rotatably connected to the front and rear parts of the middle of the upper and lower ends of the housing (1). On the upper parts of the outer surfaces of the two stirring rods (64), pulley wheels (63) are fixedly connected. A transmission belt (62) is wound and connected between the two pulley wheels (63).

3. The waste heat recovery and utilization device according to claim 2, wherein: The output end of the stepping motor (61) is fixedly connected to the rear stirring rod (64).

4. The waste heat recovery and utilization device according to claim 1, characterized in that: The filtering device (4) includes a filtering chamber (41). The filtering chamber (41) is fixedly connected to the middle of the upper part of the right end of the housing (1). In the middle of the upper end of the filtering chamber (41), a cleaning mechanism (42) is fixedly connected. On the left and right parts of the top and bottom walls of the filtering chamber (41), metal filter plates (45) are respectively fixedly connected.

5. The waste heat recovery and utilization device according to claim 4, characterized in that: Oblique holes (43) are respectively formed in the left and right parts of the bottom wall of the filtering chamber (41). In the middle of the lower end of the filtering chamber (41), a collection mechanism (44) is fixedly connected.

6. The waste heat recovery and utilization device according to claim 4, wherein: The cleaning mechanism (42) includes a driving motor (421). The driving motor (421) is fixedly connected to the middle of the upper end of the filtering chamber (41). The output end of the driving motor (421) is fixedly connected to a reciprocating lead screw (424). A slider (422) is slidably connected to the outer surface of the reciprocating lead screw (424). On the left and right ends of the slider (422), dust cleaning brushes (425) are fixedly connected. On the front and rear parts of the slider (422), guide rods (423) are slidably connected.

7. The waste heat recovery and utilization device according to claim 6, wherein: The two guide rods (423) are respectively fixedly connected to the middle of the front and rear parts of the top and bottom walls of the filtering chamber (41). The lower end of the reciprocating lead screw (424) is rotatably connected to the bottom wall of the filtering chamber (41).

8. The waste heat recovery and utilization device according to claim 6, wherein: The collection mechanism (44) includes a sliding shell (442). The sliding shell (442) is fixedly connected to the middle of the lower end of the filtering chamber (41). A dust falling box (441) is slidably connected to the inner cavity of the sliding shell (442). Magnetic sheets (443) are respectively fixedly connected to the rear end of the dust falling box (441) and the middle of the rear wall of the sliding shell (442).

9. The waste heat recovery and utilization device according to claim 8, wherein: Both of the two oblique holes (43) communicate with the dust falling box (441).

10. The waste heat recovery and utilization device according to claim 8, characterized in that: A U-shaped pipe (2) is jointly fixedly connected to the middle parts of the left and right walls of the housing (1).

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