Water seal mechanism for invasion pipe of gooseneck pipe

Abstract

The utility model belongs to the technical field of coke oven carbonization equipment, and particularly relates to a gooseneck intrusion pipe water seal mechanism which comprises a gooseneck large cover and a top rod, a water seal sleeve is welded at the bottom end of the gooseneck large cover, the water seal sleeve is a double-layer annular pipe, the double-layer annular pipe forms a water seal groove, the top rod penetrates from the center of the water seal sleeve, and the top rod penetrates through the top rod. The top end of the gyroscope rod is fixed to the top end of the water seal cover, the side wall of the water seal cover extends into the water seal sleeve and extends to the bottom of the water seal sleeve, and the upper portion of the gyroscope rod extends out of the water seal cover and is fixedly connected with the air cylinder right-hand and left-hand buckle connecting block through a nut. The mechanism solves the problem of abrasion between the pipe sleeve of the invasion pipe and the gyroscope rod in the original design, and prevents smoke dust from overflowing from the round hole of the square cover of the invasion pipe; the water sealing sleeve adopts soft water to seal smoke, so that the cleanliness of the soft water is greatly superior to that of circulating ammonia water, and the condition that a smoke sealing pipeline is blocked does not exist; and the bottom of the water seal cover is always below the liquid level in the water seal tank to ensure that raw coke oven gas at the lower part of the gyroscope rod cannot overflow.

Description

Technical Field

[0001] This utility model belongs to the technical field of coke oven carbonization equipment, and in particular relates to a gooseneck tube intrusion pipe water seal mechanism. Background Technology

[0002] The 7.63-meter coke oven is a reheating ultra-large coke oven, capable of using both coke oven gas and mixed gas for heating. It mainly consists of a hydraulic exchange system, an ascending pipe system, a venting system, and an external system. The ascending pipe gooseneck (bridge pipe) is equipped with an intrusion pipe and a spool ammonia spraying device. The intrusion pipe is a central sleeve fitted with a smoke-sealing tube. The spool is inserted into the intrusion pipe to adjust the spool opening. Wear occurs between the spool and the intrusion pipe sleeve, and smoke escapes from the round hole in the square cover of the intrusion pipe. Ammonia is sprayed through the smoke-sealing tube to keep the spool afloat. The continuous water seal between the gyroscope and the intrusion pipe sleeve is used to seal off the raw coal gas. Currently, even with the ammonia water spraying volume adjusted to the maximum, it cannot completely seal off the smoke. This causes frequent smoke emission from the upper part of the gyroscope (connected to the gyroscope cylinder's positive and negative interlocking block). Tar deposits accumulate on the surface of the gyroscope, and the suspended solids and oil content in the circulating ammonia water used are difficult to control. This leads to frequent blockages in the smoke-sealing pipe, causing it to lose its function. Smoke and dust overflow between the gyroscope and the intrusion pipe sleeve is severe. During the adjustment of the gyroscope by the valve positioner, the raw coal gas inside the gooseneck pipe overflows from the intrusion pipe sleeve, resulting in uncontrolled environmental pollution. Utility Model Content

[0003] The purpose of this invention is to provide a gooseneck intrusion pipe water seal mechanism to solve the problem of raw coal gas leakage caused by poor sealing of the gap between the gyroscope and the intrusion pipe sleeve.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A gooseneck tube intrusion pipe water seal mechanism includes a gooseneck tube cover and a gyroscope. The bottom end of the gooseneck tube cover is welded with a water seal sleeve, which is a double-layered annular tube forming a water seal groove. The gyroscope passes through the center of the water seal sleeve, and a water seal cover is fitted around the gyroscope. The top of the gyroscope is fixed to the top of the water seal cover. The side wall of the water seal cover extends into the water seal sleeve and extends to the bottom of the water seal sleeve. The top of the gyroscope extends out of the water seal cover and is connected and fixed to the cylinder positive and negative buckle connecting block by a nut.

[0006] Preferably, the distance between the side wall of the water seal cover and the double-layer annular pipe of the water seal sleeve is 20mm.

[0007] Preferably, a round pad is provided between the top of the gyroscope and the top of the water seal cover.

[0008] Preferably, when the cylinder fixed to the gyroscope is raised to its highest position, the distance between the bottom of the water seal cover and the top of the water seal sleeve is not less than 80mm.

[0009] Modification process: (1) Remove the fixing bolts of the gooseneck tube cover and clean the impurities in the bolt holes; (2) Close the air supply control valve of the gyroscope cylinder, remove the metal hose pull head of the cylinder inlet and outlet, remove the positive and negative buckle connecting block between the gyroscope cylinder and the cylinder, and retract the cylinder rod of the gyroscope and fix the cylinder rod to prevent the cylinder rod from falling due to its own weight; (3) Remove the four clamping bolts of the intrusion tube square cover and remove the intrusion tube; (4) Remove the gooseneck tube cover and clean the scale on the gooseneck tube cover and the flange surface of the gooseneck tube. (5) Install the graphite-wrapped gasket for the gooseneck tube cover and apply grease to the bolts and threads; (6) Install the water seal mechanism on the machine, making sure to insert the water seal sleeve first, connect the soft water pipeline, and fill the water seal groove with soft water; (7) Install a round washer with an inner diameter of ∮30mm at the root of the thread on the gooseneck tube, put the water seal cover on the gooseneck tube and place it in the water seal groove of the gooseneck tube, install the thin nut, and tighten the nut to lock the water seal cover; (8) Install and tighten the fixing bolts for the gooseneck tube cover; (9) Connect the matching pipeline for the gooseneck tube cover.

[0010] Working principle: The water seal groove of the water seal sleeve is filled with soft water. Smoke or raw coal gas enters from the bottom of the spindle. As the raw coal gas pressure changes, the cylinder fixed to the spindle rises or falls. Whether the cylinder rises or falls, the distance between the bottom of the water seal cover and the top of the water seal sleeve is not less than 80mm. Even if the gas pressure is unstable, the 80mm height, i.e., the 80Kpa pressure, can overcome the risk of unstable gas pressure and ensure that the raw coal gas does not escape.

[0011] The beneficial effects achieved by this utility model are:

[0012] (1) Remove the original intrusion pipe and smoke sealing pipe, and adopt the integrated design of water seal sleeve and gooseneck pipe cover to eliminate the problem of wear between the intrusion pipe sleeve and the spindle in the original design, and prevent smoke and dust from overflowing from the round hole of the square cover of the intrusion pipe; and the water seal sleeve uses soft water for smoke sealing, and the cleanliness of soft water is much better than that of circulating ammonia water, so there is no blockage of the smoke sealing pipeline.

[0013] (2) The side wall of the water seal cover is inserted into the water seal sleeve and extends to the bottom of the water seal sleeve. During the lifting and lowering of the cylinder, the bottom of the water seal cover is always below the liquid level in the water seal groove, ensuring that the raw coal gas under the spindle is always sealed by water and cannot be dispersed, thus achieving the purpose of dust control. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0015] Figure 2 This is a diagram showing the state of the cylinder during the lifting process of an embodiment of this utility model.

[0016] Explanation of reference numerals in the attached diagram: 1. Gooseneck tube cap; 2. Water seal sleeve; 3. Gyroscope; 4. Water seal cover; 5. Cylinder positive and negative snap-fit ​​connecting block. Detailed Implementation

[0017] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and embodiments.

[0018] like Figure 1 As shown, a gooseneck intrusion pipe water seal mechanism includes a gooseneck cap 1 and a spindle 3. A water seal sleeve 2 is welded to the bottom end of the gooseneck cap 1. The water seal sleeve 2 is a double-layered annular pipe, forming a water seal groove. The spindle 3 passes through the center of the water seal sleeve 2. A water seal cover 4 is fitted around the spindle 3. The top of the spindle 3 is fixed to the top of the water seal cover 4. A round washer is provided between the top of the spindle 3 and the top of the water seal cover 4. The sidewall of the water seal cover 4 extends into the water seal sleeve 2 and extends to the bottom of the water seal sleeve 2. The sidewall of the water seal cover 4 is double-layered with the water seal sleeve 2. The distance between the annular tubes is 20mm. The upper part of the gyroscope 3 extends out of the water seal cover 4 and is connected and fixed to the cylinder positive and negative buckle connecting block 5 by nuts. The gooseneck tube large cover is welded to the water seal sleeve as a whole, and the original intrusion tube and smoke sealing tube are removed to prevent smoke from overflowing from the round hole of the square cover of the intrusion tube. The side wall of the water seal cover is extended into the water seal sleeve and extends to the bottom of the water seal sleeve. Whether the cylinder is lifting or falling, the bottom of the water seal cover is always below the liquid level in the water seal groove to ensure that the raw coal gas under the gyroscope cannot be released.

[0019] like Figure 2 As shown, when the cylinder is raised to its highest position, the distance between the bottom of the water seal cover 4 and the top of the water seal sleeve 2 is 80mm. The design of the bottom of the water seal cover being 80mm below the top of the water seal sleeve is to prevent the unstable pressure of smoke or raw coal gas from causing the water seal cover to move upward and resulting in the escape of raw coal gas.

Claims

1. A gooseneck inlet water seal mechanism, comprising a gooseneck cap and a lever, characterized in that, The bottom end of the gooseneck tube cap is welded with a water seal sleeve, which is a double-layered annular tube forming a water seal groove. The gyroscope passes through the center of the water seal sleeve, and a water seal cover is fitted around the gyroscope. The top of the gyroscope is fixed to the top of the water seal cover. The side wall of the water seal cover extends into the water seal sleeve and extends to the bottom of the water seal sleeve. The top of the gyroscope extends out of the water seal cover and is connected and fixed to the cylinder positive and negative buckle connecting block by a nut.

2. The gooseneck inlet pipe water seal mechanism according to claim 1, characterized in that, The distance between the side wall of the water seal cover and the double-layer annular pipe of the water seal sleeve is 20mm.

3. A gooseneck inlet pipe water seal mechanism according to any one of claims 1 or 2, characterized in that, A round pad is provided between the top of the gyroscope and the top of the water seal cover.

4. The gooseneck inlet pipe water seal mechanism according to claim 3, characterized in that, When the cylinder fixed to the gyroscope is raised to its highest position, the distance between the bottom of the water seal cover and the top of the water seal sleeve is not less than 80mm.

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