Thermal cracking equipment for waste rubber products

Abstract

The utility model provides thermal cracking equipment for waste rubber products, which belongs to the technical field of rubber treatment, and comprises a thermal cracking box, two supports are fixedly connected to the bottom of the thermal cracking box, a supporting block is fixedly connected to the top of the thermal cracking box, a supporting plate is fixedly connected to the side wall of the supporting block, and the supporting plate is fixedly connected to the side wall of the supporting block. The upper surface of the supporting block is fixedly connected with a motor; the discharging mechanism comprises a crushing chamber and a preheating chamber, the crushing chamber is arranged above the preheating chamber, the bottom of the preheating chamber is communicated with the thermal cracking box, a sieve plate is arranged between the crushing chamber and the preheating chamber, and a crushing device is arranged in the crushing chamber; and the hot air backflow mechanism comprises a first air guide pipe, a second air guide pipe and an air bag. By arranging the crushing device, the heating area of the rubber product is increased, and the working efficiency is improved; and a hot air backflow mechanism is arranged, so that hot air is prevented from being directly discharged into air to cause resource waste.

Description

Technical Field

[0001] The utility model belongs to the technical field of rubber processing, in particular to a thermal cracking device for waste rubber products. Background Art

[0002] Rubber thermal cracking is a process that converts waste rubber products into valuable products. This process breaks down rubber waste into small molecular compounds through heating and chemical treatment, which are then further refined and purified to obtain products such as fuel oil.

[0003] After searching, Chinese patent publication number CN215480732U discloses a thermal cracking equipment for waste rubber products. By setting up a spiral conveying mechanism, it can automatically and continuously feed the material into the cracking chamber under sealed conditions. There is no need to stop the rubber cracking reaction during feeding. It is only necessary to add rubber particles to the storage barrel, which is simpler and more convenient to operate.

[0004] The existing device has the following deficiencies:

[0005] 1. The existing device directly performs thermal cracking on waste rubber products. For some large rubber products, thermal cracking takes a long time and the working efficiency is low;

[0006] 2. The existing device directly discharges the waste gas generated during cracking into the air. When the waste gas is discharged, the heat in the cracking chamber is also discharged. The discharged heat needs to be replenished, resulting in more energy consumption during thermal cracking, causing waste of resources and reduced work efficiency. Utility Model Content

[0007] The purpose of the utility model is to solve the problems mentioned in the background technology of the prior art and to propose a thermal cracking device for waste rubber products.

[0008] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0009] A thermal cracking device for waste rubber products, comprising:

[0010] A thermal cracking box, wherein two supports are fixedly connected to the bottom of the thermal cracking box, a support block is fixedly connected to the top of the thermal cracking box, a support plate is fixedly connected to the side wall of the support block, and a motor is fixedly connected to the upper surface of the support block;

[0011] A material discharge mechanism, comprising a crushing chamber and a preheating chamber, wherein the crushing chamber is above the preheating chamber, the bottom of the preheating chamber is connected to the thermal cracking box, a sieve plate is provided between the crushing chamber and the preheating chamber, and a crushing device is provided in the crushing chamber;

[0012] A hot air reflux mechanism, the hot air reflux mechanism includes a first air duct, a second air duct and an air bag, the air bag is fixedly connected to the support plate, the air inlet and the air outlet of the air bag are fixedly connected to the first air duct and the second air duct respectively, the first air duct and the second air duct are connected to the thermal cracking box and the preheating chamber at one end away from the air bag respectively, and the hot air reflux mechanism is driven by a driving mechanism.

[0013] Preferably, the driving mechanism comprises a cam fixedly mounted on the motor, and the cam is slidably connected to the upper surface of the airbag.

[0014] Preferably, the crushing device includes a rotating shaft fixedly connected to the motor, the rotating shaft extends into the crushing chamber and is rotatably connected to the side wall of the crushing chamber, and a cutter is fixedly connected to the rotating shaft.

[0015] Preferably, the top of the crushing chamber and the bottom of the preheating chamber are both configured to be funnel-shaped.

[0016] Preferably, the first air guide pipe is a steel pipe.

[0017] Preferably, the second air duct is a metal hose.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] The utility model is provided with a crushing device, and the motor drives the rotating shaft and the cutter to rotate, so as to cut the waste rubber products in the crushing chamber. The cut rubber products enter the thermal cracking box for splitting, thereby increasing the heating area of ​​the rubber products and improving the working efficiency.

[0020] The utility model provides a hot air reflux mechanism, and the motor drives the cam to rotate to reciprocately squeeze the airbag. The airbag absorbs the hot air in the thermal cracking box through the first air duct and discharges it to the preheating chamber through the second air duct to preheat the rubber product, which can improve work efficiency and avoid the waste of resources caused by directly discharging the hot air into the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a thermal cracking device for waste rubber products proposed in the utility model;

[0022] Figure 2 This is a right side view of a thermal cracking device for waste rubber products proposed in the utility model;

[0023] Figure 3 for Figure 2 Cross-sectional view along the AA direction.

[0024] In the figure: 1 thermal cracking box, 11 support, 12 support block, 13 motor, 121 support plate, 21 crushing chamber, 22 preheating chamber, 23 screen plate, 31 first air guide pipe, 32 second air guide pipe, 33 air bag, 4 cam, 51 rotating shaft, 52 cutter. DETAILED DESCRIPTION

[0025] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0026] Reference Figure 1-Figure 3 A thermal cracking device for waste rubber products includes a thermal cracking box 1, a feeding mechanism, and a hot gas reflux mechanism. Two supports 11 are fixedly connected to the bottom of the thermal cracking box 1, a support block 12 is fixedly connected to the top of the thermal cracking box 1, a support plate 121 is fixedly connected to the side wall of the support block 12, and a motor 13 is fixedly connected to the upper surface of the support block 12;

[0027] The unloading mechanism includes a crushing chamber 21 and a preheating chamber 22. The top of the crushing chamber 21 and the bottom of the preheating chamber 22 are both funnel-shaped. The crushing chamber 21 is above the preheating chamber 22. The bottom of the preheating chamber 22 is connected to the thermal cracking box 1. A screen plate 23 is provided between the crushing chamber 21 and the preheating chamber 22. A crushing device is provided in the crushing chamber 21. The crushing device includes a rotating shaft 51 fixedly connected to the motor 13. The rotating shaft 51 extends into the crushing chamber 21 and is rotatably connected to the side wall of the crushing chamber 21. A cutter 52 is fixedly connected to the rotating shaft 51. The rotating shaft 51 and the cutter 52 are driven by the motor 13 to rotate to cut the rubber product.

[0028] The hot gas reflux mechanism includes a first air duct 31, a second air duct 32 and an air bag 33. The first air duct 31 is a steel pipe. When the cam 4 squeezes the air bag 33, the first air duct 31 will not be deformed. The second air duct 32 is a metal hose. When the air bag 33 is deformed, the second air duct 32 can be extended or shortened. The air bag 33 is fixedly connected to the support plate 121. The air inlet and air outlet of the air bag 33 are respectively fixedly connected to the first air duct 31 and the second air duct 32. The ends of the first air duct 31 and the second air duct 32 away from the air bag 33 are respectively connected to the thermal cracking box 1 and the preheating chamber 22. The hot gas reflux mechanism is driven by a driving mechanism. The driving mechanism includes a cam 4 fixedly mounted on the motor 13. The cam 4 is slidably connected to the upper surface of the air bag 33. When the cam 4 rotates, it reciprocatingly squeezes the air bag 33.

[0029] The functional principle of the present invention can be explained through the following operation mode: when in use, the waste rubber products are poured into the crushing chamber 21, and the motor 13 is turned on. The motor 13 drives the rotating shaft 51 and the cutter 53 to rotate to cut the waste rubber products. The cut small pieces of rubber products fall into the preheating chamber 22 through the sieve plate 23, and enter the thermal cracking box 1 for cracking after being preheated in the preheating chamber 22. After being preheated in the preheating chamber 22, the rubber products are cracked. After being cut, the heating area is increased and the cracking efficiency is high; at the same time, the motor 13 drives the cam 4 to rotate, and the cam 4 rotates to reciprocate and squeeze the airbag 33. The airbag 33 absorbs the hot air in the thermal cracking box 1 through the first air duct 31 and discharges it into the preheating chamber 22 through the second air duct 32 for preheating, thereby realizing heat recycling and avoiding the waste of resources caused by directly discharging the hot air into the air.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A thermal cracking device for waste rubber products, characterized in that: include: A thermal cracking box (1), wherein two supports (11) are fixedly connected to the bottom of the thermal cracking box (1), a support block (12) is fixedly connected to the top of the thermal cracking box (1), a support plate (121) is fixedly connected to the side wall of the support block (12), and a motor (13) is fixedly connected to the upper surface of the support block (12); A material discharge mechanism, the material discharge mechanism comprising a crushing chamber (21) and a preheating chamber (22), the crushing chamber (21) being above the preheating chamber (22), the bottom of the preheating chamber (22) being in communication with the thermal cracking box (1), a sieve plate (23) being provided between the crushing chamber (21) and the preheating chamber (22), and a crushing device being provided in the crushing chamber (21); A hot air reflux mechanism comprises a first air duct (31), a second air duct (32) and an air bag (33); the air bag (33) is fixedly connected to a support plate (121); an air inlet and an air outlet of the air bag (33) are respectively fixedly connected to the first air duct (31) and the second air duct (32); one end of the first air duct (31) and the second air duct (32) away from the air bag (33) are respectively connected to a thermal cracking box (1) and a preheating chamber (22); and the hot air reflux mechanism is driven by a driving mechanism.

2. The thermal cracking equipment for waste rubber products according to claim 1, characterized in that: The driving mechanism comprises a cam (4) fixedly mounted on the motor (13), and the cam (4) is slidably connected to the upper surface of the airbag (33).

3. The thermal cracking equipment for waste rubber products according to claim 1, characterized in that: The crushing device comprises a rotating shaft (51) fixedly connected to a motor (13), the rotating shaft (51) extending into a crushing chamber (21) and rotatably connected to a side wall of the crushing chamber (21), and a cutter (52) fixedly connected to the rotating shaft (51).

4. The thermal cracking equipment for waste rubber products according to claim 1, characterized in that: The top of the crushing chamber (21) and the bottom of the preheating chamber (22) are both configured to be funnel-shaped.

5. The thermal cracking equipment for waste rubber products according to claim 1, characterized in that: The first air guide pipe (31) is made of a steel pipe.

6. The thermal cracking equipment for waste rubber products according to claim 1, characterized in that: The second air guide pipe (32) is made of a metal hose.

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