Novel desulfurization circulating pump slurry conveying flexible connection device

Abstract

The utility model provides a novel desulfurization circulating pump slurry conveying flexible connection device which comprises a rubber sleeve and a slurry conveying pipe fastener, the rubber sleeve completely wraps and sleeves the slurry conveying pipe fastener, and the rubber sleeve is used for being in contact with the end face of a flange. According to the utility model, the connection tensile force of the contact surface of the flange and the grout delivery pipe fastener can be increased, rubber is prevented from falling off from the clamping groove in the operation process, the operation stability is greatly improved, the grout leakage frequency is reduced, the corrosion is reduced, the equipment operation failure rate is reduced, and the installation precision requirement is reduced; the manual replacement cost and the spare part use number are reduced.

Description

Technical Field

[0001] This utility model relates to the field of wet limestone-gypsum desulfurization technology, and in particular to a novel flexible connection device for conveying slurry in a desulfurization circulating pump. Background Technology

[0002] Waste flue gas generated during the production of acid pellets must be treated with limestone slurry for desulfurization before it can be discharged. Under normal circumstances, the slurry drawn by the slurry circulation pump is sent to the desulfurization slurry inlet via a flexible conveying device, and then enters the desulfurization tower through the same device for flue gas desulfurization.

[0003] During normal slurry transportation, the flexible connection device for slurry transportation is prone to slurry leakage and pipeline corrosion due to pressure and head, which can prevent slurry transportation and affect the normal production operation of the desulfurization system. Utility Model Content

[0004] This utility model relates to a slurry conveying flexible connection device that can act as a throat connection during the slurry circulation pump's slurry delivery process in a wet limestone-gypsum desulfurization process, thereby ensuring sufficient slurry supply in the desulfurization tower and ensuring desulfurization operating efficiency.

[0005] This utility model provides a novel flexible connection device for desulfurization circulating pump slurry conveying, including a rubber sleeve and a slurry conveying pipe fastener. The rubber sleeve completely wraps around and is fitted onto the slurry conveying pipe fastener, and the rubber sleeve is used to contact the flange end face.

[0006] Furthermore, the width of the rubber sleeve is greater than its contact width with the flange end face.

[0007] Furthermore, the thickness of the rubber sleeve is 3-8 mm.

[0008] Furthermore, the rubber sleeve is uniformly provided with wavy patterns.

[0009] Furthermore, the rubber sleeve is uniformly provided with circular protrusions.

[0010] Furthermore, the diameter of the circular protrusion is 1-3 mm.

[0011] Furthermore, the height of the circular protrusion is 2-4 mm.

[0012] Furthermore, the rubber sleeve is provided with irregular patterns.

[0013] Furthermore, bolt holes are provided on the outside of the slurry conveying pipe fastener.

[0014] Furthermore, four bolt holes are evenly arranged around the outer periphery of the slurry delivery pipe fastener.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: it can increase the connection tension of the flange and the slurry conveying pipe fastener contact surface, prevent the rubber from falling out of the slot during operation, greatly increase the operational stability, reduce the frequency of slurry leakage and reduce corrosion, reduce the equipment failure rate, and at the same time reduce the installation accuracy requirements, reduce the labor replacement cost and the number of spare parts used. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram illustrating the installation of the novel desulfurization circulating pump slurry conveying flexible connection device with the desulfurization tower according to an embodiment of this utility model.

[0018] Figure 2 This is a top view schematic diagram of the novel desulfurization circulating pump slurry conveying flexible connection device according to an embodiment of this utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 100: Desulfurization circulating pump slurry conveying flexible connection device; 1: Rubber sleeve; 2: Bolt hole. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Ordinary grooved rubber flexible joints are used as connection devices at the inlet and outlet of the circulating pump and at the bend of the slurry pipeline entering the tower. The circulating pump needs to reach the spray layer at the inlet of the desulfurization tower through a head of about 25m to draw slurry, generating a pressure difference of 1.6MPa. Because the contact area between the rubber lining and the flange end face of the ordinary grooved rubber flexible joint is small, the pressure and head can easily cause the rubber to slip out of the groove. Moreover, the installation accuracy requirement is high. If the deviation is large during maintenance and replacement, the pressure inside the pipe will continue to increase, which can easily cause the slurry flexible joint devices at various points to deform and fall off, resulting in slurry bursting and leakage, pipeline corrosion, and thus the inability to transport slurry. In addition, each pump requires three grooved rubber flexible joints to complete the slurry supply operation, and each desulfurization tower requires a total of 18 grooved rubber flexible joints to operate normally. The large number of spare parts greatly affects the desulfurization efficiency, shortens the equipment service cycle, increases the intensity of maintenance work, increases costs, affects the ecological environment of the pellet plant, and affects normal production.

[0025] like Figure 1 and Figure 2 As shown, this utility model provides a novel flexible connection device for desulfurization circulating pump slurry conveying, including a rubber sleeve 1 and a slurry conveying pipe fastener. The rubber sleeve 1 completely wraps around and is fitted onto the slurry conveying pipe fastener, and the rubber sleeve 1 is used to contact the flange end face. The width of the rubber sleeve 1 is greater than its contact width with the flange end face. The thickness of the rubber sleeve 1 is 3-8mm. By increasing the adhesion area between the rubber end face flange and the flange end face, the rubber sleeve 1 is effectively prevented from falling out of the groove during operation, greatly increasing operational stability.

[0026] To further increase the friction of the contact surface, the rubber sleeve 1 is uniformly provided with wavy patterns or uniformly provided with circular protrusions. The diameter of the circular protrusions is 1-3mm. The height of the circular protrusions is 2-4mm. Irregular patterns can also be provided on the rubber sleeve 1.

[0027] Bolt holes 2 are provided on the outside of the slurry conveying pipe fastener. Four bolt holes 2 are evenly distributed around the outer circumference of the slurry conveying pipe fastener. Four tie rods are added at the outermost end face of the flange to increase the tension of the contact surface, greatly increase the operational stability, reduce the failure rate, reduce the installation accuracy requirements, reduce the cost of manual replacement and the number of spare parts used, and greatly improve the desulfurization operation rate and desulfurization efficiency.

[0028] The advantages of this invention are: the modification is simple and easy to implement, the modification has a wide range of applications, it increases operational stability, reduces the failure rate of operations, reduces the installation accuracy requirements, reduces labor replacement costs and the number of spare parts used, and greatly improves the desulfurization operation rate and desulfurization efficiency.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A novel flexible connection device for conveying slurry in a desulfurization circulating pump, characterized in that, It includes a rubber sleeve (1) and a slurry conveying pipe fastener. The rubber sleeve (1) completely wraps around and is fitted onto the slurry conveying pipe fastener, and the rubber sleeve (1) is used to contact the flange end face.

2. The novel desulfurization circulating pump slurry conveying flexible connection device according to claim 1, characterized in that, The width of the rubber sleeve (1) is greater than its contact width with the flange end face.

3. The novel desulfurization circulating pump slurry conveying flexible connection device according to claim 1, characterized in that, The thickness of the rubber sleeve (1) is 3-8 mm.

4. The novel desulfurization circulating pump slurry conveying flexible connection device according to claim 1, characterized in that, The rubber sleeve (1) is uniformly provided with wavy patterns.

5. The novel desulfurization circulating pump slurry conveying flexible connection device according to claim 1, characterized in that, The rubber sleeve (1) is uniformly provided with circular protrusions.

6. The novel desulfurization circulating pump slurry conveying flexible connection device according to claim 5, characterized in that, The diameter of the circular protrusion is 1-3 mm.

7. The novel desulfurization circulating pump slurry conveying flexible connection device according to claim 5, characterized in that, The height of the circular protrusion is 2-4mm.

8. The novel desulfurization circulating pump slurry conveying flexible connection device according to claim 1, characterized in that, The rubber sleeve (1) has a textured surface.

9. The novel desulfurization circulating pump slurry conveying flexible connection device according to claim 1, characterized in that, Bolt holes (2) are provided on the outside of the slurry conveying pipe fastener.

10. The novel desulfurization circulating pump slurry conveying flexible connection device according to claim 9, characterized in that, Four bolt holes (2) are evenly arranged around the outer periphery of the slurry conveying pipe fastener.

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