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Silicon carbide sulfuric acid concentration evaporator

A sulfuric acid concentration and evaporator technology, which is applied to evaporator accessories, horizontal tube evaporators, forced circulation evaporators, etc., can solve the problems of high use cost of evaporators, increase energy consumption, waste resources, etc. The effect of reducing energy consumption and reducing heating burden

Pending Publication Date: 2022-06-24
NANTONG STAR GRAPHITE EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional sulfuric acid concentration mostly adopts sulfuric acid concentration evaporator, such as "a kind of evaporator for sulfuric acid concentration" proposed in the publication number "CN207861894U", the application proposes "the evaporator for sulfuric acid concentration includes an anti-corrosion evaporator shell Body, multiple silicon carbide heating sleeves and anti-corrosion tube sheets, the anti-corrosion tube sheets are set in the shell of the anti-corrosion evaporator, each silicon carbide heating sleeve is equipped with an electric heating wire assembly installed on the anti-corrosion tube sheet and located in the anti-corrosion evaporator shell In vivo", although it has the following effects: using silicon carbide heating sleeve, it has high thermal conductivity, high strength, high temperature resistance and anti-acid and alkali corrosion characteristics, suitable for high temperature, high pressure, strong acid and strong alkali and other environments, used for sulfuric acid concentration The evaporator has a very good concentration effect, and can also prolong the service life of the equipment and reduce production costs", but there are still the following defects in use: when dilute sulfuric acid is heated through a silicon carbide heating sleeve, high-temperature steam will be generated, but Most of the high-temperature steam in this application is directly discharged from the steam outlet, which greatly wastes resources and increases energy consumption, making the evaporator costly. Therefore, the present invention proposes a silicon carbide sulfuric acid concentration evaporator

Method used

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  • Silicon carbide sulfuric acid concentration evaporator
  • Silicon carbide sulfuric acid concentration evaporator
  • Silicon carbide sulfuric acid concentration evaporator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Please refer to figure 1 , a silicon carbide sulfuric acid concentrating evaporator, comprising a basic component 1 and a steam circulation driving component 2 arranged on the basic component 1, the basic component 1 comprising an evaporator shell 11, opened at the left end of one side outer wall of the evaporator shell 11 and The circulating acid inlet pipe 12 communicated with the inner cavity of the evaporator shell 11 , the tube boxes 13 symmetrically arranged at both ends of the evaporator shell 11 , and the outer tube sheet 14 arranged between the tube box 13 and the end of the evaporator shell 11 And the inner tube sheet 15, the heating sleeve 17 arranged in the inner cavity of the evaporator shell 11 and placed between the left and right inner tube plates 15, arranged in the evaporator shell 11 and placed between the left and right inner tube plates 15 There are multiple sets of anti-corrosion baffles 18 for supporting the heating jacket 17, a concentrated sulfu...

Embodiment 2

[0042] like image 3 As shown, the steam pressure regulating and supplying part 21 includes a docking seat 211 arranged on the top of the steam outlet pipe 19 by bolts, an air inlet 213 opened at the bottom of the docking seat 211 so that the inner cavity of the docking seat 211 communicates with the steam outlet pipe 19, The receiving seat 212 at the top of the docking seat 211 and communicated with the inner cavity of the docking seat 211, the limit seats 216 detachably arranged on the two side walls of the receiving seat 212, and the valve seat 214 arranged in the docking seat 211, from the attached image 3 It can be seen that one side of the valve seat 214 runs through a vent opening up and down, and the vent can be sealed with a sealing ball 215. A filter layer 219 is arranged in the limit seat 216 to filter the exhausted steam, and the left exhaust pipe 22 is far away from One end of the pipe box 13 is specifically communicated with the outside of the left limit seat 21...

Embodiment 3

[0046] like figure 1 and Figure 4 As shown, the driving part 24 includes a gas transmission pipe 241 which is communicated with the other ends of the two groups of circulation pipes 23 through a pipe joint, and a one-way valve is arranged in the gas transmission pipe 241 to avoid the backflow of the steam discharged from the gas transmission pipe 241. The gas transmission pipe 241 The other end is communicated with the bottom of the notch in the support seat 1101 of the left support part 110, and an exhaust hole 242 connected to the notch is provided at the upper left position of the support seat 1101 of the left support part 110, and is supported on the left side. The bottom of the left side of the support seat 1101 of the part 110 is provided with a vent hole that communicates with the notch, and a seal 243 is detachably provided at the vent hole for sealing;

[0047] The movable seat 1102 is adapted to the slot, and when the steam enters the slot through the gas pipe 241,...

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Abstract

The invention provides a silicon carbide sulfuric acid concentration evaporator which comprises a basic assembly, and the basic assembly comprises an evaporator shell, a steam outlet pipe arranged at the top of the evaporator shell and two sets of supporting parts arranged at the bottom of the evaporator shell; a steam circulation driving assembly, the steam circulation driving assembly comprises a steam pressure regulating supply part arranged at the top of the steam outlet pipe, exhaust pipes arranged on the two sides of the steam pressure regulating supply part, and a circulation pipe arranged at the bottom of the pipe box and communicated with the pipe box. The driving part is connected with the other ends of the two groups of circulating pipes and is connected with the supporting part on the left side; and the circulating part is communicated with the circulating acid inlet pipe. According to the technical scheme, the steam circulation driving assembly is arranged at the steam outlet pipe, dilute sulphuric acid to be treated makes contact with steam sprayed into the pipe box for heat exchange when flowing in the coiled pipe, preheating of the dilute sulphuric acid to be treated is achieved, and therefore the heating burden of a subsequent heating sleeve is reduced, and energy consumption is reduced.

Description

technical field [0001] The invention relates to the technical field of sulfuric acid concentrating evaporators, in particular to a silicon carbide sulfuric acid concentrating evaporator. Background technique [0002] At present, the waste acid produced by enterprises requires self-treatment or recovery, while sulfuric acid concentration is a more sulfuric acid recovery method. [0003] Traditional sulfuric acid concentration mostly adopts sulfuric acid concentration evaporator, such as "an evaporator for sulfuric acid concentration" proposed in the publication number "CN207861894U", which proposes "the evaporator for sulfuric acid concentration includes an anti-corrosion evaporator shell. body, a plurality of silicon carbide heating sleeves and anti-corrosion tube sheets, the anti-corrosion tube sheets are set in the anti-corrosion evaporator shell, and each silicon carbide heating sleeve is provided with an electric heating wire assembly installed on the anti-corrosion tube...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D1/14B01D1/04B01D1/00B01D1/30C01B17/88
CPCB01D1/14B01D1/04B01D1/0094B01D1/0082B01D1/305C01B17/88
Inventor 郭启林陆俊缪世阳何志峰陈徐飞
Owner NANTONG STAR GRAPHITE EQUIP CO LTD