Acid mist and fan pipeline sealing connection mechanism for cold-rolled strip steel pickling

Abstract

An acid mist and fan pipeline sealing connection mechanism for cold-rolled strip steel pickling belongs to the technical field of strip steel processing equipment and comprises a fan pipeline and an acid mist pipeline inserted into the bottom end of the fan pipeline, a water sealing groove used for sealing acid mist is formed in the acid mist pipeline, a spiral groove is formed in the inner wall of the water sealing groove, and the spiral groove is communicated with the fan pipeline. The top of the spiral groove is provided with a water inlet pipe communicated with the spiral groove, the bottom of the spiral groove is provided with a water outlet pipe communicated with the spiral groove, and the water inlet pipe and the water outlet pipe are tangent to the water sealing groove. The device does not need to frequently replace the rubber corrugated pipe, and does not need to stop the acid mist collection process in the replacement process, so that a large amount of manpower and material resources are saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to strip steel processing equipment technical field, specifically speaking, a kind of acid mist and fan pipeline sealing connection mechanism for pickling of cold-rolled strip steel. BACKGROUND

[0002] Strip steel is also called steel belt, and it is a kind of narrow and long steel plate produced by rolling enterprises to meet the needs of different industrial departments in industrialized production of various metal or mechanical products. Before heat treatment, cold-rolled strip steel often needs to go through an acid pickling process to remove the surface oxide layer. During the acid pickling process, acid mist is generated, which needs to be collected in a collection tank and then extracted through an acid mist pipeline connected to a fan.

[0003] In actual production, the acid mist pipeline and the fan pipeline are generally connected by a rubber corrugated pipe. However, the rubber corrugated pipe is in contact with high-concentration acid mist for a long time, and acid molecules can penetrate the vulcanization network, causing the rubber corrugated pipe to swell, harden, and crack. The rubber corrugated pipe needs to continuously absorb the vibration of the fan, and long-term alternating stress can cause the internal fiber reinforcement layer to break. Therefore, the rubber corrugated pipe needs to be frequently replaced, which consumes a lot of manpower and resources. Moreover, the acid mist collection process needs to be stopped during the replacement process, which cannot be continuous and uninterrupted. SUMMARY

[0004] To solve the problem of frequent replacement of rubber corrugated pipes in the prior art and the need to stop the acid mist collection process during the replacement process, the utility model provides an acid mist and fan pipeline sealing connection mechanism for pickling of cold-rolled strip steel, which does not need to frequently replace rubber corrugated pipes and does not need to stop the acid mist collection process during the replacement process, saving a lot of manpower and resources.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following specific scheme: an acid mist and fan pipeline sealing connection mechanism for pickling of cold-rolled strip steel, comprising a fan pipeline and an acid mist pipeline inserted into the bottom end of the fan pipeline, a water sealing groove for sealing acid mist is provided on the acid mist pipeline, a spiral groove is opened on the inner wall of the water sealing groove, a water inlet pipe is provided on the top of the spiral groove and communicates with the spiral groove, a water outlet pipe is provided at the bottom of the spiral groove and communicates with the spiral groove, and the water inlet pipe and the water outlet pipe are tangent to the water sealing groove.

[0006] As an optimization scheme of the above-mentioned acid mist and fan pipeline sealing connection mechanism for pickling of cold-rolled strip steel, a through hole is opened in the bottom of the water sealing groove for the acid mist pipeline to pass through, and a rubber sealing ring is provided in the through hole.

[0007] As another optimization scheme of the above-mentioned acid mist and fan pipeline sealing connection mechanism for pickling of cold-rolled strip steel, an inclined brace is provided on the acid mist pipeline to support the water sealing groove.

[0008] As another optimization scheme of the acid mist and fan pipeline sealing connection mechanism for cold-rolled strip steel pickling, the two ends of the inclined support are connected with the acid mist pipeline and the water sealing groove through adhesive connection.

[0009] As another optimization scheme of the acid mist and fan pipeline sealing connection mechanism for cold-rolled strip steel pickling, the two ends of the inclined support are connected with the acid mist pipeline and the water sealing groove through adhesive connection.

[0010] As another optimization scheme of the acid mist and fan pipeline sealing connection mechanism for cold-rolled strip steel pickling, the bottom end of the water inlet pipeline is higher than the top end of the acid mist pipeline.

[0011] As another optimization scheme of the acid mist and fan pipeline sealing connection mechanism for cold-rolled strip steel pickling, the acid mist pipeline and the fan pipeline are made of glass fiber reinforced plastic.

[0012] As another optimization scheme of the acid mist and fan pipeline sealing connection mechanism for cold-rolled strip steel pickling, the spacing between the outer wall of the acid mist pipeline and the inner wall of the fan pipeline is 2-5 cm.

[0013] Compared with the prior art, the acid mist and fan pipeline sealing connection mechanism for cold-rolled strip steel pickling has the following beneficial effects:

[0014] 1) The acid mist and fan pipeline sealing connection mechanism for cold-rolled strip steel pickling is provided, the acid mist pipeline and the fan pipeline inserted into the top end of the acid mist pipeline, the water sealing groove for sealing the acid mist is arranged on the acid mist pipeline, water is filled in the water sealing groove, the acid mist is sealed by water to avoid leakage, and the gap between the acid mist pipeline and the fan pipeline can avoid pipeline damage caused by vibration or thermal expansion compensation of the fan.

[0015] 2) In the utility model, the inner wall of the water sealing groove is provided with a spiral groove, the top of the spiral groove is provided with a water inlet pipe communicated with the spiral groove, and the bottom end of the spiral groove is provided with a water outlet pipe communicated with the spiral groove, which can not only change water regularly to avoid excessive acidity, but also can use water flow impact to remove sediment during water changing. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a partial sectional view of the sealing connection device;

[0017] Figure 2 is a top view of the sealing connection device;

[0018] Fig. 1 is an acid mist pipeline, Fig. 2 is a fan pipeline, Fig. 3 is a water sealing groove, Fig. 4 is a spiral groove, Fig. 5 is a water inlet pipe, Fig. 6 is a water outlet pipe, Fig. 7 is a through hole, Fig. 8 is a rubber sealing ring, Fig. 9 is an inclined support, and Fig. 10 is a damping rubber pad. DETAILED DESCRIPTION

[0019] The technical scheme of the utility model will be further described in detail in combination with specific embodiments. The parts not described and disclosed in the following embodiments of the utility model should be understood as the prior art known or should be known by the person skilled in the art.

[0020] As shown in Figure 1 , Figure 2 An acid mist and fan pipeline sealing connection mechanism for pickling of cold-rolled strip steel, comprising a fan pipeline 2 and an acid mist pipeline 1 inserted into the bottom end thereof, the acid mist pipeline 1 is a pipeline installed on the pickling tank of the pickling process, and the fan pipeline 2 is a pipeline installed on the outlet of the fan; the material of the acid mist pipeline 1 and the fan pipeline 2 is glass fiber reinforced plastic. The spacing between the outer wall of the acid mist pipeline 1 and the inner wall of the fan pipeline 2 is 2-5 cm; such design can avoid pipeline damage caused by vibration or thermal expansion compensation of the fan.

[0021] The acid mist pipeline 1 is provided with a water sealing groove 3 for sealing the acid mist, which is a cylindrical structure with an open top end; the bottom of the water sealing groove 3 is provided with a through hole 7 for the acid mist pipeline 1 to pass through, the inner diameter of the through hole 7 is not less than the outer diameter of the acid mist pipeline 1, and a rubber sealing ring 8 is arranged in the through hole 7 for preventing water leakage from the connection between the acid mist pipeline 1 and the through hole 7.

[0022] A spiral groove 4 is formed on the inner wall of the water sealing groove 3, the top of the spiral groove 4 is provided with a water inlet pipe 5 in communication therewith, the bottom of the spiral groove 4 is provided with a water outlet pipe 6 in communication therewith, and the water inlet pipe 5 and the water outlet pipe 6 are tangent to the water sealing groove 3. Such design can not only periodically change the water to avoid excessive acidity, but also form stable cyclone in the spiral groove 4 by using the water flow impact in the water changing process to carry away the sediment. The bottom end of the water inlet pipe 5 is higher than the top end of the acid mist pipeline 1; to avoid backflow of water.

[0023] The above is the basic implementation mode of the utility model, which can be further improved, optimized and limited on the basis of the above to obtain the following embodiments:

[0024] Embodiment 2

[0025] This embodiment is an improved scheme based on embodiment 1, and the main structure is the same as that of embodiment 1, and the improvement point is:

[0026] As shown in Figure 1 , Figure 2As shown, the acid mist pipeline 1 is provided with inclined braces 9 for supporting the water sealing groove 3, in the utility model, the number of the inclined braces 9 is four, the inclined brace 9 and the acid mist pipeline 1 and the water sealing groove 3 form a triangular structure, so as to improve the stability of the water sealing groove 3. Both ends of the inclined brace 9 are connected with the acid mist pipeline 1 and the water sealing groove 3 through adhesive connection. Both ends of the inclined brace 9 are provided with shock-absorbing rubber pads 10, the shock-absorbing rubber pads 10 are connected with the acid mist pipeline 1 and the fan pipeline 2 through adhesive connection, the shock-absorbing rubber pads 10 can absorb the vibration when the fan operates, prolong the service life of the device.

[0027] The working process of the sealing connection mechanism: when working, the acid mist generated in the pickling process flows upwards through the acid mist pipeline 1, and the fan pipeline 2 generates negative pressure through the fan to extract the acid mist. The water flow is injected into the spiral groove 4 from the water inlet pipe 5, and forms a cyclone under the action of centrifugal force, fills the water sealing groove 3, forms a liquid seal barrier, and prevents the acid mist from leaking out. The water flow is finally discharged from the water outlet pipe 6, realizing the circulation sealing.

[0028] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sealing connection mechanism for acid mist and fan duct of cold-rolled strip steel pickling, characterized in that: The utility model relates to acid mist pipeline (1) and fan pipeline (2) are inserted in the bottom end, acid mist pipeline (1) is equipped with water seal groove (3) for sealing acid mist, the inner wall of water seal groove (3) is equipped with spiral groove (4), spiral groove (4) top is equipped with water inlet pipe (5) with intercommunication, spiral groove (4) bottom is equipped with water outlet pipe (6) with intercommunication, and water inlet pipe (5) and water outlet pipe (6) are tangent with water seal groove (3).

2. The acid mist and fan duct sealing connection mechanism for cold-rolled strip steel pickling according to claim 1, characterized in that: The bottom of the water seal groove (3) is provided with a through hole (7) for the acid mist pipeline (1) to pass through, and a rubber sealing ring (8) is arranged in the through hole (7).

3. The acid mist and fan duct sealing connection mechanism for cold-rolled strip steel pickling according to claim 1, characterized in that: The acid mist pipeline (1) is provided with an inclined support (9) for supporting the water seal groove (3).

4. The acid mist and fan duct sealing connection mechanism for cold-rolled strip steel pickling according to claim 3, characterized in that: Both ends of the inclined support (9) are connected to the acid mist pipeline (1) and the water seal groove (3) by adhesive bonding.

5. An acid mist and fan duct sealing connection mechanism for cold-rolled strip steel pickling according to claim 4, characterized in that: Both ends of the inclined support (9) are provided with shock-absorbing rubber pads (10), which are adhesively connected to the acid mist pipeline (1) and the fan pipeline (2).

6. An acid mist and fan duct sealing connection mechanism for cold-rolled strip steel pickling according to claim 1, characterized in that: The bottom end of the water inlet pipe (5) is higher than the top end of the acid mist pipeline (1).

7. An acid mist and fan duct sealing connection mechanism for cold-rolled strip steel pickling according to claim 1, characterized in that: The acid mist pipeline (1) and the fan pipeline (2) are made of glass fiber reinforced plastic.

8. An acid mist and fan duct sealing connection mechanism for cold-rolled strip steel pickling according to claim 1, characterized in that: The spacing between the outer wall of the acid mist pipeline (1) and the inner wall of the fan pipeline (2) is 2-5 cm.

Images