Tire internal mixing section waste gas treatment device

Abstract

The utility model discloses a tire internal mixing section waste gas treatment device, which belongs to the technical field of tire production waste gas treatment, and comprises a waste material recovery mechanism, a material storage mechanism, a dust removal mechanism and a wind power mechanism, the waste recovery mechanism, the storage mechanism and the dust removal mechanism are communicated; the flue gas is subjected to thermal refining through the adsorbent, stable operation of follow-up environment-friendly equipment is guaranteed, the adsorbent suitable for being selected by the device is various, the system adaptability is high, the system is controlled in a full-automatic mode, the adsorbent can be added into the flue gas regularly or quantitatively, and the automation degree is high; tar-containing flue gas generated by the internal mixer is subjected to thermal refining, substances such as tar in the flue gas are captured, and the cleanliness of the flue gas entering follow-up environment-friendly treatment equipment is guaranteed; when the flue gas is debugged and treated, the captured adsorbent with a small amount of tar can be recovered and recycled, so that the cost is effectively saved.

Description

Technical Field

[0001] The present application belongs to the technical field of waste gas treatment in tire production and manufacturing, and in particular relates to a waste gas treatment device for a tire mixing section. Background Art

[0002] During tire production, various small materials in the tire rubber formula need to be weighed and packaged, and then put into the internal mixer with natural rubber and synthetic rubber in proportion for mixing. After mixing, a masterbatch is formed. During the mixing process, the rubber is extruded and sheared by two rotors in the internal mixer. At the same time, fillers (carbon black) and other substances and oil substances need to be added. The process of adding and removing the rubber is accompanied by a large amount of air containing VOCs, dust, tar, etc., and low-concentration waste gas is continuously evaporated into the air. In order to meet national environmental protection requirements, this part of the waste gas needs to be treated. At present, the "rotor concentration + RTO combustion" method is generally used for the treatment of tire rubber mixing waste gas, which will produce a large amount of dust and tar. In order to avoid a large amount of dust and tar entering the subsequent pollution and environmental protection treatment equipment, the aggregated flue gas needs to be tempered. Utility Model Content

[0003] The present application provides a waste gas treatment device for a tire mixing section, which solves the problem that the tar-containing flue gas generated during tire mixing cannot be tempered and subsequently pollutes environmental protection treatment equipment.

[0004] An embodiment of the present application provides a waste gas treatment device for a tire mixing section, including a waste recovery mechanism, a material storage mechanism is provided below the waste recovery mechanism, and a dust removal mechanism is provided on one side of the waste recovery mechanism and the material storage mechanism; one side of the material storage mechanism and the dust removal mechanism are respectively connected to a wind power mechanism; the waste recovery mechanism, the material storage mechanism, the wind power mechanism and the dust removal mechanism are connected.

[0005] In one embodiment,

[0006] The waste recycling mechanism includes a mixed material silo, a silo top bag dust collector is provided on one side of the top of the mixed material silo, and a return pipe is connected to the other side. A silo funnel is provided below the mixed material silo.

[0007] In one embodiment,

[0008] A high level meter is provided on one side of the upper part of the mixing silo, and a low level meter is provided on the lower part. Silo wall rappers are symmetrically provided on both sides of the upper part of the silo funnel, and a first boiling box is symmetrically provided below the silo wall rappers; second boiling boxes are symmetrically connected on both sides of the lower part of the silo funnel, and the lower parts of the two symmetrically arranged second boiling boxes are respectively connected to a first frequency conversion rotary unloading valve and a second frequency conversion rotary unloading valve, the first frequency conversion rotary unloading valve is connected to a retractable material pipe, a valve is provided on the retractable material pipe, and the second frequency conversion rotary unloading valve is connected to a material pipe.

[0009] In one embodiment,

[0010] The material storage mechanism includes a fresh material silo, one side of the top of the fresh material silo is connected to a feeding pipe, the feeding pipe is connected to a vacuum loader, and the other side of the top of the fresh material silo is connected to the material pipe; a fresh material silo funnel is provided below the fresh material silo, a third boiling box is provided on one side of the fresh material silo funnel, and a third variable frequency rotary unloading valve is connected below the fresh material silo funnel.

[0011] In one embodiment,

[0012] A loss-in-weight scale is provided below the third variable-frequency rotary discharge valve, and a screw conveyor feeder is provided below the loss-in-weight scale.

[0013] In one embodiment,

[0014] The waste recycling mechanism also includes a compressed air storage tank, one side of which is connected to a dry oil-free gas source, and the dry oil-free gas source is connected to the silo top bag dust collector, the first boiling box, the second boiling box and the third boiling box through pipelines respectively.

[0015] In one embodiment,

[0016] The dust removal mechanism includes an upper box body of a bag dust collector, an ash hopper is provided below the upper box body of the bag dust collector, a rotary discharge valve is connected below the ash hopper, a feeding pipe is connected to one side of the ash hopper, and a third manual valve is provided on the feeding pipe.

[0017] In one embodiment,

[0018] The wind power mechanism includes a feeding wind power mechanism, which includes a feeding Roots blower. One side of the feeding Roots blower is connected to a first air-material mixer through a pipeline, and a second manual ball valve is provided on the pipeline; the first air-material mixer is connected to the screw conveying feeder.

[0019] In one embodiment,

[0020] The wind power mechanism also includes a discharge wind power mechanism, which includes a return material Roots blower. One side of the return material Roots blower is connected to a second gas-material mixer through a pipeline, and a second manual valve is provided on the pipeline; one side of the second gas-material mixer is connected to the return pipe.

[0021] In one embodiment,

[0022] The second gas-material mixer is connected to the rotary discharge valve; at least one group of dust removal mechanisms is provided, the feed wind power mechanism is connected to at least one group of dust removal mechanisms, and the multiple dust removal mechanisms are connected to the waste recovery mechanism via the discharge wind power mechanism and the return pipe.

[0023] The present application provides a waste gas treatment device for a tire mixing section, which has a variety of suitable adsorbents to choose from, strong system adaptability, and fully automatic system control. The adsorbent can be added to the flue gas at a timed or quantitative basis, and has a high degree of automation. The present application performs conditioning treatment on the tar-containing flue gas generated by the internal mixer, and captures tar and other substances in the flue gas to ensure the cleanliness of the flue gas entering subsequent environmental protection treatment equipment. While the flue gas is being debugged and treated, the adsorbent with a small amount of tar after capture can be recovered and recycled, effectively saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0025] Figure 1 This is a schematic diagram of the assembly structure;

[0026] Figure 2 This is a schematic diagram of the structure of a waste recycling organization;

[0027] Figure 3 Schematic diagram of the material storage mechanism structure;

[0028] Figure 4 Schematic diagram of the wind power mechanism structure;

[0029] Figure 5 It is a structural diagram of the dust removal mechanism and the discharge wind power mechanism.

[0030] Explanation of symbols in the figure:

[0031] A. Waste recycling mechanism; B. Storage mechanism; C. Dust removal mechanism; D1. Feed air power mechanism; D2. Discharge air power mechanism; 1. First manual ball valve; 2. Electric ball valve; 3. Bag dust collector on silo roof; 4. Mixing silo; 5. High level meter; 6. Low level meter; 7. Silo wall vibrator; 8. First boiling box; 9. Second boiling box; 10. First variable frequency rotary discharge valve; 11. Retractable feed pipe; 12. Feed pipe; 13. First solenoid valve; 14. Second solenoid valve; 15. First manual valve; 16. Second manual valve; 17. Second variable frequency rotary discharge valve; 18. Fresh feed silo; 19. Feed pipe; 20. First manual valve ; 21. Third solenoid valve; 22. Third boiling box; 23. Third frequency conversion rotary discharge valve; 24. Loss-in-weight scale; 25. Screw conveyor feeder; 26. Feeding Roots blower; 27. Second manual ball valve; 28. First gas-material mixer; 29. Valve; 30. Return material Roots blower; 31. Second manual valve; 32. Third manual valve; 33. Feeding pipe; 34. Rotary discharge valve; 35. Second gas-material mixer; 36. Return pipe; 37. Bag filter upper box; 38. Ash hopper; 39. Vacuum feeder; 40. Dry oil-free air source; 41. Compressed air storage tank; 42. Silo funnel; 43. Fresh silo funnel. DETAILED DESCRIPTION

[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clear and understandable, this application is further described in detail. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0033] In one embodiment, a tire mixing section exhaust gas treatment device, such as Figure 1 As shown, it includes a waste recycling mechanism A, a storage mechanism B is provided below the waste recycling mechanism A, and a dust removal mechanism C is provided on one side of the waste recycling mechanism A and the storage mechanism B; one side of the storage mechanism B and the dust removal mechanism C are respectively connected to the feeding wind power mechanism D1 and the discharging wind power mechanism D2; the waste recycling mechanism A, the storage mechanism B, the feeding wind power mechanism D1 and the discharging wind power mechanism D2 are connected to the dust removal mechanism C.

[0034] The dust removal mechanism C is used to mix the adsorbent and flue gas to remove tar in the flue gas; the waste recovery mechanism A is used to store the recovered adsorbent; the storage mechanism B is used to store unused adsorbent and recyclable adsorbent; the wind power mechanisms D1 and D2 provide injection power to facilitate the adsorbent to reach each mechanism.

[0035] In one embodiment, Figure 2As shown, the waste recycling mechanism A includes a mixing silo 4, a silo top bag dust collector 3 is provided on one side of the top of the mixing silo 4, and a return pipe 36 is connected on the other side. A silo funnel 42 is provided below the mixing silo 4; a high material level meter 5 is provided on one side of the upper part of the mixing silo 4, and a low material level meter 6 is provided on the lower part. Silo wall vibrators 7 are symmetrically provided on both sides of the upper part of the silo funnel 42, and a first boiling box 8 is symmetrically provided below the silo wall vibrator 7; second boiling boxes 9 are symmetrically connected on both sides below the silo funnel 42, and the two symmetrically arranged second boiling boxes 9 are respectively connected to the first frequency conversion rotary unloading valve 10 and the second frequency conversion rotary unloading valve 17 below, the first frequency conversion rotary unloading valve 10 is connected to the retractable material pipe 11, and the retractable material pipe 11 is provided with a valve 29, and the second frequency conversion rotary unloading valve 17 is connected to the material pipe 12.

[0036] Specifically, the return pipe 36 transports the recovered adsorbent to the mixing silo 4 for storage, the bag dust collector 3 on the silo top separates the adsorbent from the gas, causing the adsorbent to fall into the mixing silo 4, and the air is discharged. The high level meter 5 and the low level meter 6 determine the amount of adsorbent recovered, and the silo wall vibrator 7 facilitates the recycled adsorbent to enter the storage mechanism. The first boiling box 8 and the second boiling box 9 can boil the adsorbent so that the adsorbent can effectively pass through the pipeline to avoid equipment blockage and material accumulation. The first frequency conversion rotary unloading valve 10 and the second frequency conversion rotary unloading valve 17 realize the on-off of the material. The adsorbent that cannot be reused after recycling enters the external transport vehicle through the retractable material pipe 11 and is discharged externally. The adsorbent that can be reused after recycling enters the storage mechanism B through the material pipe 12.

[0037] In one embodiment, Figure 3 As shown, the storage mechanism B includes a fresh material silo 18, one side of the top of the fresh material silo 18 is connected to a feeding pipe 19, the feeding pipe 19 is connected to a vacuum loader 39, and the other side of the top of the fresh material silo 18 is connected to a material pipe 12; a fresh material silo funnel 43 is provided below the fresh material silo 18, a third boiling box 22 is provided on one side of the fresh material silo funnel 43, a third frequency conversion rotary discharge valve 23 is connected below the fresh material silo funnel 43, a loss-in-weight scale 24 is provided below the third frequency conversion rotary discharge valve 23, and a screw conveyor feeder 25 is provided below the loss-in-weight scale 24.

[0038] Specifically, the storage mechanism and the waste recovery mechanism are connected through the material pipe 12, and the recyclable adsorbent enters the fresh material bin 18 for storage through the material pipe 12; the vacuum loader 39 is a negative pressure vacuum loader, and the unused adsorbent is transported into the fresh material bin 18 for storage through the feeding pipe 19, the loss-in-weight scale 24 is used to weigh the amount of adsorbent added, and the screw feeder 25 transports the adsorbent into the wind power mechanism, and the third boiling box 22 has the same function as the first boiling box 8.

[0039] In one embodiment, the waste recycling mechanism A also includes a compressed air storage tank 41, and one side of the compressed air storage tank 41 is connected to a dry oil-free gas source 40, and the dry oil-free gas source 40 is connected to the silo top bag dust collector 3, the first boiling box 8, the second boiling box 9 and the third boiling box 22 through pipes respectively; the dry oil-free gas source 40 passes through the silo top bag dust collector 3 to provide pulse power for the silo top bag dust collector 3, and the dry oil-free gas source 40 passes through the first boiling box 8, the second boiling box 9 and the third boiling box 22, so that the adsorbent can effectively pass through the pipeline to avoid clogging of the equipment and accumulation of materials.

[0040] In one embodiment, a first manual ball valve 1 and an electric ball valve 2 are provided on the pipe near the bag filter 3 on the top of the silo, a second manual valve 16 and a first solenoid valve 13 are provided on the pipe near the first boiling box 8, a first manual valve 15 and a second solenoid valve 14 are provided on the pipe near the second boiling box 9, and a first manual valve 20 and a third solenoid valve 21 are provided on the pipe near the third boiling box 22. The above valves are all used to open and close the pipes.

[0041] In one embodiment, the wind power mechanism includes a feed wind power mechanism D1 and a discharge wind power mechanism D2, and the feed wind power mechanism D1 and the discharge wind power mechanism D2 have the same structure. Figure 4 As shown, the feed air power mechanism D1 includes a feeding Roots blower 26, one side of which is connected to a first air-material mixer 28 through a pipeline. The Roots blower 26 provides power for adsorbent injection, and a second manual ball valve 27 is provided on the pipeline; the first air-material mixer 28 is connected to the screw feeder 25, and the first air-material mixer 28 injects and transports the adsorbent to the dust removal mechanism C.

[0042] In one embodiment, Figure 5 As shown, the dust removal mechanism C includes an upper box body 37 of the bag dust collector, and an ash hopper 38 is provided below the upper box body 37 of the bag dust collector. A rotary discharge valve 34 is connected below the ash hopper 38. A feeding pipe 33 is connected to one side of the ash hopper 38. A third manual valve 32 is provided on the feeding pipe 33. The feeding air power mechanism D1 is connected to the dust removal mechanism C through the feeding pipe 33; the discharging air power mechanism D2 includes a return material Roots blower 30, and a second gas-material mixer 35 is connected to one side of the return material Roots blower 30 through a pipeline, and a second manual valve 31 is provided on the pipeline; the second gas-material mixer 35 is connected to the rotary discharge valve 34 and the return material pipe 36.

[0043] Specifically, the summary flue is arranged on the upper part of the upper box body 37 of the bag dust collector, which is not marked in the figure; the summary flue gas transported by the summary flue enters the upper box body 37 of the bag dust collector, and the upper box body 37 of the bag dust collector mixes and adsorbs the adsorbent with the summary flue gas, the ash hopper 38 is used to temporarily store the adsorbent, and the rotary unloading valve 34 is used to open and close the ash hopper 38 and the discharge wind power mechanism D2; one side of the second gas-material mixer 35 is connected to the return pipe 36, and the second gas-material mixer 35 transports the recovered adsorbent to the mixing silo 4 through the return pipe 36; the function of the discharge wind power mechanism D2 is the same as that of the feed wind power mechanism D1.

[0044] In one embodiment, Figure 5 As shown, at least one group of dust removal mechanisms C is provided, and the optimal number is 3-6 groups. In this embodiment, there are 3 groups. The three groups of dust removal mechanisms C operate simultaneously, and the adsorbents in the three groups of ash hoppers 38 enter the return pipe 36 for recovery simultaneously. The feed wind power mechanism D2 is connected to at least one group of dust removal mechanisms C, and multiple dust removal mechanisms C are connected to the waste recovery mechanism A via the discharge wind power mechanism D2 and the return pipe 36, and multiple dust removal mechanisms C are connected in parallel.

[0045] The above describes the specific structure of this application. Figure 1-5 The working principle of the above-mentioned tire mixing section exhaust gas treatment device is described as follows:

[0046] The adsorbent passes through the vacuum feeder 39 and the feeding pipe 19 into the fresh material bin 18 for storage. According to the amount added, the fresh material bin 18 can meet the storage requirements of 5-7 days. The adsorbent enters the weighing device of the loss-in-weight scale 24 through the third frequency conversion rotary discharge valve 23 to weigh the amount of adsorbent added, and then enters the first gas mixer 28 through the screw feeder 25. The second manual ball valve 27 is opened, and the power wind provided by the feeding Roots blower 26 passes through the first gas mixer 28 to mix the adsorbent with air, and then enters the ash hopper 38 through the feeding pipe 33 to mix and adsorb with the aggregated flue gas; the adsorbent particles with adsorbed tar are captured by the upper box 37 of the bag dust collector and temporarily stored in the ash hopper 38. After the adsorption is completed, they fall into the second gas mixer 3 through the rotary discharge valve 34. 5, the second manual valve 31 is opened, and the return material Roots blower 30 provides power wind to return the adsorbent falling into the two-gas material mixer 35 to the mixed material silo 4 through the return pipe 36 for storage. After being captured by the bag dust collector 3 on the silo top, the recycled adsorbent falls into the mixed material silo 4, and the clean air is discharged outside; the recyclable adsorbent falling into the mixed material silo 4 is judged by the high material level meter 5 and the low material level meter 6 to determine the recovery amount; the recyclable adsorbent passes through the second frequency conversion rotary unloading valve 17 and the material pipe 12 into the fresh material silo 18 for recycling; a silo wall vibrator 7 is installed at the bottom of the mixed material silo 4 to facilitate the recycled adsorbent to enter the fresh material silo 18; after regular circulation, the adsorbent that cannot be recycled passes through the first frequency conversion rotary unloading valve 10 and the retractable material pipe 11 into the external transport vehicle for discharge.

[0047] The present application provides a waste gas treatment device for a tire mixing section, comprising a waste recycling mechanism, a material storage mechanism provided below the waste recycling mechanism, a dust removal mechanism provided on one side of the waste recycling mechanism and the material storage mechanism, a wind power mechanism provided on one side of the material storage mechanism and the dust removal mechanism, the waste recycling mechanism, the material storage mechanism and the dust removal mechanism are connected, the flue gas generated by each mixing line is collected, mixed and adsorbed with an adsorbent at the inlet of a bag dust collector, and then enters the bag dust collector, and the dust after the tar is adsorbed is captured by the bag to achieve the purpose of flue gas debugging and treatment, and the adsorbent with a small amount of tar after capture enters the mixing silo for recycling and reuse, and is discharged after the adsorbent is saturated with adsorption; the adsorbent can be slaked lime, carbon black, etc. , which has an adsorption effect on tar and moisture in the flue gas; uses the adsorbent to adsorb tar and other sticky substances in the waste gas generated by the internal mixer that are not suitable for entering the subsequent impeller, and tempers the flue gas to ensure the smooth operation of the subsequent environmental protection equipment. The device is suitable for a variety of adsorbents, the system has strong adaptability, and the system is fully automatically controlled. Adsorbents can be added to the flue gas at regular intervals or in a quantitative manner, with a high degree of automation; this application tempers the tar-containing flue gas generated by the internal mixer, captures tar and other substances in the flue gas, and ensures the cleanliness of the flue gas entering the subsequent environmental protection treatment equipment; while the flue gas is being debugged and treated, the adsorbent with a small amount of tar after capture can be recovered and reused, effectively saving costs.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0049] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A tire mixing section exhaust gas treatment device, characterized in that: It includes a waste recovery mechanism, a material storage mechanism is provided below the waste recovery mechanism, a dust removal mechanism is provided on one side of the waste recovery mechanism and the material storage mechanism; one side of the material storage mechanism and the dust removal mechanism are respectively connected to a wind power mechanism; the waste recovery mechanism, the material storage mechanism, the wind power mechanism and the dust removal mechanism are connected.

2. The tire mixing section exhaust gas treatment device according to claim 1, characterized in that: The waste recycling mechanism includes a mixed material silo, a silo top bag dust collector is provided on one side of the top of the mixed material silo, and a return pipe is connected to the other side. A silo funnel is provided below the mixed material silo.

3. The exhaust gas treatment device for tire mixing section according to claim 2, characterized in that: A high level meter is provided on one side of the upper part of the mixing silo, and a low level meter is provided on the lower part. Silo wall rappers are symmetrically provided on both sides of the upper part of the silo funnel, and a first boiling box is symmetrically provided below the silo wall rappers; second boiling boxes are symmetrically connected on both sides of the lower part of the silo funnel, and the lower parts of the two symmetrically arranged second boiling boxes are respectively connected to a first frequency conversion rotary unloading valve and a second frequency conversion rotary unloading valve, the first frequency conversion rotary unloading valve is connected to a retractable material pipe, a valve is provided on the retractable material pipe, and the second frequency conversion rotary unloading valve is connected to a material pipe.

4. The exhaust gas treatment device for tire mixing section according to claim 3, characterized in that: The material storage mechanism includes a fresh material silo, one side of the top of the fresh material silo is connected to a feeding pipe, the feeding pipe is connected to a vacuum loader, and the other side of the top of the fresh material silo is connected to the material pipe; a fresh material silo funnel is provided below the fresh material silo, a third boiling box is provided on one side of the fresh material silo funnel, and a third variable frequency rotary unloading valve is connected below the fresh material silo funnel.

5. The exhaust gas treatment device for tire mixing section according to claim 4, characterized in that: A loss-in-weight scale is provided below the third variable-frequency rotary discharge valve, and a screw conveyor feeder is provided below the loss-in-weight scale.

6. The tire mixing section exhaust gas treatment device according to claim 5, characterized in that: The waste recycling mechanism also includes a compressed air storage tank, one side of which is connected to a dry oil-free gas source, and the dry oil-free gas source is connected to the silo top bag dust collector, the first boiling box, the second boiling box and the third boiling box through pipelines respectively.

7. The tire mixing section exhaust gas treatment device according to claim 6, characterized in that: The dust removal mechanism includes an upper box body of a bag dust collector, an ash hopper is provided below the upper box body of the bag dust collector, a rotary discharge valve is connected below the ash hopper, a feeding pipe is connected to one side of the ash hopper, and a third manual valve is provided on the feeding pipe.

8. The tire mixing section exhaust gas treatment device according to claim 7, characterized in that: The wind power mechanism includes a feeding wind power mechanism, which includes a feeding Roots blower. One side of the feeding Roots blower is connected to a first air-material mixer through a pipeline, and a second manual ball valve is provided on the pipeline; the first air-material mixer is connected to the screw conveying feeder.

9. The tire mixing section exhaust gas treatment device according to claim 8, characterized in that: The wind power mechanism also includes a discharge wind power mechanism, which includes a return material Roots blower. One side of the return material Roots blower is connected to a second gas-material mixer through a pipeline, and a second manual valve is provided on the pipeline; one side of the second gas-material mixer is connected to the return pipe.

10. The tire mixing section exhaust gas treatment device according to claim 9, characterized in that: The second gas-material mixer is connected to the rotary discharge valve; at least one group of dust removal mechanisms is provided, the feed air power mechanism is connected to at least one group of dust removal mechanisms, and multiple dust removal mechanisms are connected to the waste recovery mechanism through the discharge air power mechanism and the return pipe.

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