201219721 六、發明說明： 【發明所屬之技術領域】 本發明係關於-種具有擴大調節範圍之固體燃料熱氣 體產生器，其可較佳用於研磨-乾燥裝置中（例如，用於研 磨固體燃料）。 【先前技術】 自煤的汽化、藉由PCI(粉煤噴吹）製程之生鐵及鋼生 產且自水泥工業（DE 40 35 730 C2,目錄LOESCHE GmbH， Dusseldorf，「Loesche - Muhlen fur teste Brennst〇ffe」， 01/2008 )已知如下煤研磨設備，其具有藉由供應熱氣體使 濕原煤經爻研磨-乾燥製程且使其研磨成煤塵的風掃磨（ swept miU )(例如，LOESCHE型立式輥磨機、懸式輥磨機 或環式輥磨機）、具有使煤塵-氣體混合物分離之分離單元 (例如，過濾器）且具有用於產生熱氣體之熱氣體產生器， 氣體之一部分作為返回氣體被饋送回至熱氣體產生器。 另外在非金屬礦物工業中使用煤塵燃料熱氣體產生器 來使生料、溶 >查及粒狀鼓風爐炼造及水泥乾燥。在石膏 糖及鉀肥工業中亦已知以褐煤或硬煤塵為燃料的熱氣體產 生器。 自DE 197 06 077 A1已知如下熱氣體產生器，其具有 在供應有燃燒空氣的情況下以氣動傳送之燃燒塵（例如 硬煤或褐煤塵、生質塵或其混合物）為燃料的燃燒器、！ 置於該燃燒器上之出口侧的燃燒器馬弗爐、待加熱之氣 之饋送器，及配置於燃燒器馬弗爐之後且形成為多孔失 4 201219721 的混合組件，該多孔夾套具有交錯的圓枉形部分且具有保 護套（其形成待加熱之氣體之環形通道）。 描述於DE 42 08 951 A1中的熱氣體產生器已包含—由 金屬製成以供待加熱之氣體流入之多孔夾套單元及一燃燒 器馬弗爐，該燃燒器馬弗爐形成為在軸向方向上比該多孔 夾套單兀實質上短且内襯有耐火材料。然而，此處燃燒器 為具有圍繞彼此的貧氣·燃燒空氣噴嘴之多喷搶燃燒器。 DE 197 25 613 A1揭示用於因燃燒燃料油或可燃氣體 或煤塵而產生熱廢氣的燃燒器。藉由氣體載體介質（較佳 為空氣）來輸送煤塵，且經由噴射搶將其喷吹至反應腔室 中，该喷射搶自燃燒器頭延伸至圓錐形反應腔室之最大直 徑點且設置於具有偏轉罩之出口側端。經由在反應腔室之 頭側端處的徑向葉柵來饋送燃燒空氣。葉柵及反應腔室之 一部分由收集空氣的外殼所圍繞，燃燒空氣將安置於此外 奴中’且燃燒空氣自此外殼經由葉栅傳遞至反應腔室中。 燃燒器由於其流動型樣而產生特別大的紊流波動移動區 域。燃燒塵在離開偏韓罩之後被輸送回至空氣導葉，且藉 由渴旋螺旋狀火焰將其加熱至大約丨〇〇〇°c且點燃。火焰喷 射具有強脈衝’且產生氣體之極快速再循環。 在網際網路公開案「Impuls-Brenner，System Dr. Schoppe, fur Braunkohlenstaub, Heizol und Gas von 100 kW bis 3 5 MW」中’將前述燃燒器描述為脈衝燃燒器。 脈衝燃燒器之進一步發展描述於DE 102 32 373 B4 中’其將針對至少200°C至900°C之熱氣體溫度範圍包含增 201219721 加之火焰穩定性及火焰喷射速度。 結合混合腔室而使用的固體燃料燃燒器具有最大為j 5 之調節範圍。技術上已證實之此調節範圍限制使得更難以 阻止在需要較高調節範圍（例如，高$ 1:10之調節範圍） 的基於製程之裝置中使用具有混合腔室（例如，多孔夾套 單元）之熱氣體產生器。此等調節範圍可由待乾燥之材料 之有極大波動的濕氣及待遞送之集合體之輪送量的改變引 起。 LOESCHE型立式輥磨機之輸送量介於（例如）1〇〇%與 40%之間。因此，該輥磨機具有為1:25之調節比。若最小 輸送量與極低濕氣及相對較高外部溫度一致，則僅相對較 低熱量係必要的。最大熱量消耗以最大輸送量、待研磨且 待乾燥的材料之最大濕氣及相對較低外部溫度為結果。 以下具體實例將說明：為了能夠接近所有「操作點」， 大約為1:8之調節比係必要的。 實例：硬煤 最大狀況 輸送量 = 80 t/h 濕氣 = 15% 溫度 = 5°C 最小狀況 熱量 = 49.66xl06kJ/h (13.8 MW) 輸送量 = 32 t/h 濕氣 = 5% 溫度 = 35 °C 熱量 = 6.1xl〇6kJ/h (1.695 MW) 調節比因 此總計為 :49.66:6.1 = 1:8.14 〇 201219721 迄今已在不存在具有固體燃燒器之熱氣體產生器的情 況下達成前述調節比因此，在用於研磨煤之研磨_ 乾燥裝置中（在自製程本身不可獲得廢熱的程度上），主要 使用具有氣體或石油燃燒器之熱氣體產生器。在煤的汽化 裝置之狀況下’通常將合成氣體作為燃料及（在PCI設備 中）鼓風爐氣體饋送至熱氣體產生器以用於燃燒。用於煤 的汽化之煤研磨裝置、PCI設備及在水泥工業中需要至少為 1:8之調節範圍。一般而言’針對石油及氣體燃料熱氣體產 生器之至少為1:1 〇的調節比已成為目前技術發展水平。 【發明内容】 .本發明之一目標為產生一種具有擴大調節範圍的固體 燃料熱氣體產生器（詳言之，煤塵燃料熱氣體產生器），以 便能夠用節約成本的燃料（例如，褐煤塵、硬煤塵等等） 來替換燃料油及氣體且亦能夠不再以經濟效率低的方式使 用合成氣體、鼓風爐氣體等等在熱氣體產生器中產生熱氣 體。 根據本發明，經由申請專利範圍第丨項及申請專利範 圍第2項之特徵來達成該目標。附屬項及對諸圖之描述中 包含有用且有利的具體實例。 核心思想可在於，給熱氣體產生器配備複數個燃燒器 以便增加調節範圍。 根據本發明，固體燃料熱氣體產生器包含複數個固體 燃燒器以便增加或擴大調節範圍以使得形成多重固體燃燒 器。 201219721 1獨立的固體饋送器及燃燒空氣饋送器指派給每一固 體燃燒ϋ ’且可獨立於其㈣㈣料職器 燒器加燃料。多重固體燃燒器之燃燒功率 =1::者之最小功率擴大至所提供的所有丄燒 ::二力率。因此擴大調節範圍’1可涵蓋熱氣體產生 益中所產生的熱氣體所供應至的集合體之所有負載區。 ;在一較佳具體實例中，具有一燃燒器馬弗爐及配置於 錢燒β馬弗爐之燃燒器板中的—開始燃燒器、具有用於 待加熱之氣體之-饋送構件及具有—混合組件（所產生之 燃燒氣體與待加熱之氣體在此混合組件中混合且此混合 组件配置於該燃燒器馬弗爐之後）之熱氣體產生器包含： 數個固體燃燒H ’該複數個固體燃燒器與該開始燃燒器同 軸地配置且固定於該燃燒器馬弗爐之燃燒器板中>同軸配 置藉此應被理解為圍繞開始燃燒器而配置固體燃燒器。固 體燃燒态距中央開始燃燒器相同距離且距彼此相同角距離 之配置係有利的。 可使燃燒器之數目有利地適應於各別要求。舉例而 吕’可將兩個、三個或四個（亦可能更多）固體燃燒器用 凸緣連接至燃燒器馬弗爐之燃燒器板。亦可有利地使用相 等或不同大小之燃燒器，亦即，具有同樣大或大小不同之 燃燒功率的燃燒器。 在垂直建構中有用地設計本發明之熱氣體產生器，且 多重固體燃燒器經設計且配置於燃燒器馬弗爐之燃燒器板 中乂使付固體燃燒器與其煤塵供應及其反應腔室延伸至燃 201219721 燒器馬弗爐中。 有利的是’三個固體燃燒器距彼此相等角距離而配置 且與在燃燒器馬弗爐之縱向軸上所導引且穿過燃燒器板的 開始燃燒器同軸配置。亦可以離開燃燒器之廢氣被導引至 燃燒器馬弗爐之出口中央的方式以已定義之角來配置燃燒 器。在針對含灰分之燃料提供固體燃燒器時，在熱氣體產 生器之燃燒器板中或在熱氣體產生器之燃燒器馬弗爐中推 薦垂直或向下傾斜配置。 進一步有利的是，可使用必須僅在尺寸上適應於燃燒 器板中之所提供數目個固體燃燒器的燃燒器馬弗爐。燃燒 器馬弗爐可内概有財火材料。 亦有用的是’燃燒器馬弗爐係由用於待加熱之氣體之 饋送構件所圍繞，且可將待加熱之氣體饋送至後續混合組 件以供與所產生之燃燒氣體混合。 多孔夾套單元可有利地配置為混合組件，其形成為鋼 燃燒腔室且在軸向方向上包含複數個圓柱形且同軸的多孔 失套’該等多孔夾套在其過渡區處形成環形間隙以供待加 熱之氣體流入且係由外部封閉鋼板夾套所圍繞並形成環形 通道。此鋼板腔室被稱為多孔夾套燃燒腔室（L〇ma燃燒 腔室）。 舉例而言，Carbotechnik Energiesysteme GmbH( Geretsried) 之脈衝燃燒器可有利地用作固體燃燒器。已在上文結合de 197 25 613 A1及DE 102 32 373 B4及此公司的網際網路公 開案中描述此等固體燃燒器。然而，亦可使用其他固體燃 201219721 燒器。 脈衝燃燒器具有介於0.5 MW與1 00 MW之間的功率且 適合於在本發明之熱氣體產生器之燃燒器馬弗爐之上部端 面燃燒器板中配置以使得形成多重脈衝燃燒器。 為了對每一個別固體燃燒器之分開控制及調節，提供 定量配料構件，該定量配料構件可個別地且獨立於鄰近燃 燒器之操作而給每一固體燃燒器供應煤塵且可移動至每一 所要調節點。 用於 Carbotechnik Energiesysteme GmbH ( Geretsried) 之流體化 '定量配料及氣動傳送的CT定量配料機器特別合 適。 定量配料機器描述於前述公司之網際網路公開案中且 描述於 EP 〇 〇54 〇18 B1 及 EP 0 2 10 162 B2 中。 將在下文中藉由開始時所描述的實例來進一步解釋具 有多重固體燃燒器或多重脈衝燃燒器之本發明之熱氣體產 生器的擴大或增加之調節範圍。 在此實例中，為13.8 MW之最大熱量係必要的。出於 基於製程之原因且關於將燃燒器併入於燃燒器馬弗爐中， 選擇：個固體燃燒器作為最佳配置。每一固體燃燒器於是 必須提供為4.6 MW之功率。在個別固體燃燒器之調節範圍 為，的狀況下，最小功率41.15MW。因此，個別固體燃 至未達到為⑽卿之必要熱量，且個別固體燃燒 益”” 1 ·4的5周卽範圍擴大至具有三個固體燃 明之多重燃燒器之為1:12的㈣範I 本發 10 201219721 據熱里要求，可使多重燃燒器配置之僅一個固體燃 燒器或兩個或全部三個燃料燃燒器投入使用。於是針對具 有三個固體燃燒器之熱氣體產生器之總調節比處於1:12 ^ 亦僅在特殊狀況下藉由氣體燃燒器達成此值。 因此，在熱氣體產生器之燃燒器馬弗爐上或燃燒器馬 弗爐中之本發明之多重固體燃燒器配置以特別有效的方式 促進熱氣體、研磨-乾燥裝置及其他熱裝置之產生。固體燃 料（例如褐煤塵）之使用特別有利，褐煤塵與燃料油及燃 燒氣體相比而言顯著更節約成本且另外可獲得充足量的褐 煤塵备使用鼓風爐氣體或合成氣體來產生熱氣體以達成 乾燥之目的時（詳言之，在煤研磨裝置中），可進行用煤塵 替換。 、 【實施方式】 下文中藉由參考諸圖之描述而更詳細地解釋本發明。 此等圖以極大示意性表示來展示。 圖1及圖2展示具有多重固體燃燒器1〇之熱氣體產生 器《亥夕重固體燃燒器1 〇在此實例中由三個固體燃燒器3、 4、5組成。 自具有兩個所說明之固體燃燒器3、4的圖1可見，固 體饋送器6及燃燒空氣饋送器7經指派給每一固體燃燒器 3、4、5且固體燃燒器3、4、5配置於燃燒器馬弗爐2之燃 燒器板12中。像固體燃燒器3、4、5及開始燃燒器8 一樣， 燃燒器馬弗爐2及隨後配置之混合組件9經垂直定向。 用於煤塵（例如，褐煤塵）之脈衝燃燒器係用作固體 201219721 …心"、、5，其包含：具有成圓錐形漸狹之火焰加速 嘴17的成圓錐形擴大之反應腔室u、具有偏轉罩Η之用 於噴吹流體化煤塵之噴射搶18，及在燃燒器頭上之徑向葉 栅25，燃燒空氣經由徑向葉栅25傳遞至反應腔室16中， 藉此’燃燒空氣經由橫向進氣口 7進入空氣外殼28中且自 此傳遞至役向葉栅2 5及反應腔室丨6。 以固體燃料為燃料的脈衝燃燒器具有高火焰喷射速 火焰3 0如圖1中所展示延伸穿過燃燒器馬弗爐2，' 進入混合組件9中。 若無固體燃料可用，則可將脈衝燃燒器切換至氣體以 便能夠維持後續裝置之操作。自E i可見，除了固體饋送 器6之外’氣體饋送器27連接至此處可見的固體或脈衝燃 燒器3、4。 在混合組件9中，發生多重固體燃燒器丨〇中所產生的 燃燒氣體之加熱及燃燒氣體與待加熱之處理氣體丨3 (處理 氣體1 3係經由饋送構件11來饋送）之混合。 饋送構件11以其徑向外殼圍繞燃燒器馬弗爐2,固體 燃燒器3、4、5之反應腔室16及火焰加速喷嘴17延伸至 燃燒器馬弗爐2中。 燃燒器馬弗爐2在此具體實例中内襯有耐火材料1 。 亦可省略耐火内襯。多孔央套單元20在出口側上連接至燃 燒器馬弗爐2,且因此作為混合組件9與燃燒器板12中之 多重固體燃燒ϋ配置1G相對。此多孔夾套單元Μ為鋼燃 燒腔室之部分，且由具有放大直徑的複數個圓柱形且同軸 12 201219721 的多孔夾套21組成。供待加熱之氣體 軋體13流入之環形間隙 22形成於個別多孔夾套21之間，且 環形通道24形成於多 孔夾套21與外部封閉鋼板材料23 心间得加熱之氣體1 3 自饋送構件11饋送至環形通道24 ^ ^ 〇1 甲且接者經由環形間隙 22及夕孔夾套21之孔饋送至混合 中。經由排氣口 29移除所形成之熱氣體14。 圃ζ展不在燃燒 …π w双u之鬲度處的 熱氣體產生器之俯視圖，其中用於 圆兵干用於待加熱之氣體的饋送構 件11之螺旋外殼配置於燃燒器馬弗爐2之周邊上。藉由氣 體或石油而操作的開始燃燒器8配置於燃燒器& :之中 央’且三個固體燃燒器3、4、5同軸地且距彼此相同距離 且距開始燃燒器8相同距離而垂直向下延伸。 用作脈衝燃燒器的固體燃燒器3、4、5亦適合於氣體 之燃燒。若在中斷之狀況下無煤塵可用，則可在無任何問 題：情況下將脈衝燃燒器切換至天然氣、合成氣體或鼓風 »氣使得可維持（例如）在煤的汽化時發電站、設借 中之鼓風爐等等之後續裝置之操作。 本發明之多燃料燃燒器之本質優點為具有固體燃燒器 之熱氣體產生器之使用領域的擴大。 在鋼工業中在煤的汽化設備中及纟pci設備中及針對 ，鐵化金製程且亦在一般的基於熱之裝置中可能使用具有 夕:燃料燃燒胃（詳言之，多個脈衝燃燒器）之熱氣體產 ^态。在煤的汽化時產生的合成氣體可藉此有利地用於能 量生產工業中且愈來愈多地用於塑膠工業中。另一方面’ 13 201219721 若合成 需要（ 合成氣 值為大 來自鋼 電站中 產生器 及重型 I 圖 生器的 圖 氣體作為能量載體分叉以用於研磨_乾燥製程，則此 在通常熱輸出介於10 MW與30 之間的情況下） 體量為3300 mN3/hs 10,000 mN3/h且合成氣體之熱 約ll，〇〇OkJ/mN、此表示所欲用途有相當大的損失。 工業之鼓風爐氣體同時亦已愈來愈頻繁地在特殊發 用於發電。使用煤塵來產生熱氣體避免了在熱氣體 中使用上文所提及之氣體及其他燃料（諸如，輕型 石油、天然氣等等），且就能量及投資而言特別 圖式簡單說明】 1為穿過具有多重固體燃燒器之本發明之 車由向縱向區段，及 、產 2為根據圖1中之線n - π的俯視圖。 主要元件符號說明】 14201219721 VI. Description of the Invention: [Technical Field] The present invention relates to a solid fuel hot gas generator having an extended adjustment range, which can be preferably used in a grinding-drying apparatus (for example, for grinding solid fuel) ). [Prior Art] Production from coal gasification, pig iron and steel by PCI (Pulverized Coal Injection) process and from cement industry (DE 40 35 730 C2, catalogue LOESCHE GmbH, Dusseldorf, "Loesche - Muhlen fur teste Brennst〇ffe , 01/2008) A coal grinding apparatus is known which has a swept miU (for example, LOESCHE type vertical) in which wet coal is subjected to a rubbing-drying process by supplying hot gas and grinding it into coal dust (for example, LOESCHE type vertical) a roller mill, a suspension roller mill or a ring roller mill), a separation unit (for example, a filter) that separates a coal dust-gas mixture, and a hot gas generator for generating a hot gas, a part of which is used as a gas The return gas is fed back to the hot gas generator. In addition, the coal dust fuel hot gas generator is used in the non-metal mineral industry to make raw materials, dissolve > to detect granular blast furnace refining and cement drying. Hot gas generators using lignite or hard coal dust as fuel are also known in the gypsum sugar and potash industry. A hot gas generator is known from DE 197 06 077 A1, which has a burner which is powered by pneumatically transmitted combustion dust (for example hard coal or brown coal dust, raw dust or a mixture thereof) supplied with combustion air. ,! a burner muffle furnace disposed on the outlet side of the burner, a gas feeder to be heated, and a mixing assembly disposed after the burner muffle furnace and formed as a porous loss 4 201219721, the porous jacket having an interlaced The rounded portion has a protective sleeve that forms an annular passage for the gas to be heated. The hot gas generator described in DE 42 08 951 A1 already comprises a porous jacket unit made of metal for the inflow of gas to be heated and a burner muffle which is formed as a shaft The direction is substantially shorter than the porous jacket unit and is lined with a refractory material. However, the burner here is a multi-jet burner having a lean air/combustion air nozzle surrounding each other. DE 197 25 613 A1 discloses burners for generating hot exhaust gases by burning fuel oil or combustible gases or coal dust. The coal dust is transported by a gas carrier medium, preferably air, and is sprayed into the reaction chamber via a jet blast which extends from the burner head to a maximum diameter point of the conical reaction chamber and is disposed at An outlet side end having a deflection hood. Combustion air is fed via a radial cascade at the head side end of the reaction chamber. The cascade and a portion of the reaction chamber are surrounded by an outer casing that collects air, and the combustion air will be placed in the slave and the combustion air is transferred from the outer casing to the reaction chamber via the cascade. The burner produces a particularly large turbulent fluctuation moving area due to its flow pattern. The combustion dust is transported back to the air vanes after leaving the partial hood, and is heated to about 丨〇〇〇°c by a thirsty spiral flame and ignited. The flame spray has a strong pulse' and produces very rapid recirculation of the gas. The aforementioned burner is described as a pulse burner in the Internet publication "Impuls-Brenner, System Dr. Schoppe, fur Braunkohlenstaub, Heizol und Gas von 100 kW bis 3 5 MW". Further developments of pulse burners are described in DE 102 32 373 B4, which would include a temperature range of at least 200 ° C to 900 ° C including an increase in 201219721 plus flame stability and flame spray speed. The solid fuel burner used in conjunction with the mixing chamber has an adjustment range of up to j 5 . This adjustment range limitation has been technically proven to make it more difficult to prevent the use of a mixing chamber (eg, a porous jacket unit) in a process-based device that requires a higher adjustment range (eg, an adjustment range of $1:10 higher). Hot gas generator. These adjustment ranges may be caused by a highly fluctuating moisture of the material to be dried and a change in the amount of rotation of the aggregate to be delivered. The delivery volume of the LOESCHE vertical roller mill is between, for example, between 1% and 40%. Therefore, the roller mill has a ratio of 1:25. If the minimum delivery is consistent with very low humidity and a relatively high external temperature, only relatively low heat is necessary. The maximum heat consumption is the result of the maximum throughput, the maximum moisture of the material to be ground and the material to be dried, and the relatively low external temperature. The following specific example will illustrate that a ratio of approximately 1:8 is necessary in order to be able to access all "operating points". Example: Maximum conditional delivery of hard coal = 80 t/h Moisture = 15% Temperature = 5°C Minimum condition heat = 49.66xl06kJ/h (13.8 MW) Delivery = 32 t/h Moisture = 5% Temperature = 35 °C Heat = 6.1xl 〇 6kJ/h (1.695 MW) The adjustment ratio is therefore: 49.66: 6.1 = 1:8.14 〇201219721 The aforementioned adjustment ratio has been achieved in the absence of a hot gas generator with a solid burner Therefore, in the grinding_drying apparatus for grinding coal (to the extent that waste heat is not available in the self-manufacturing process itself), a hot gas generator having a gas or petroleum burner is mainly used. In the case of a coal gasification unit, the synthesis gas is typically fed as a fuel and (in a PCI device) blast furnace gas to a hot gas generator for combustion. Coal grinding equipment for coal gasification, PCI equipment and in the cement industry require an adjustment range of at least 1:8. In general, the regulation ratio of at least 1:1 针对 for petroleum and gas fuel hot gas generators has become the current state of the art. SUMMARY OF THE INVENTION One object of the present invention is to produce a solid fuel hot gas generator (in particular, a coal dust fuel hot gas generator) having an extended adjustment range so as to be able to use a cost-effective fuel (for example, lignite dust, Hard coal dust, etc.) replace fuel oil and gas and can also no longer produce hot gases in hot gas generators using synthetic gases, blast furnace gases, etc. in a cost-effective manner. According to the present invention, this object is achieved by the features of the second application of the patent application and the second aspect of the patent application. Specific examples of useful and advantageous are included in the dependent items and in the description of the figures. The core idea may be to equip the hot gas generator with a plurality of burners to increase the range of adjustment. In accordance with the present invention, a solid fuel hot gas generator includes a plurality of solid burners to increase or expand the range of adjustment to form a multiple solids burner. 201219721 A separate solids feeder and combustion air feeder is assigned to each solid combustion burner' and can be refueled independently of its (d) (iv) material burner. The combustion power of multiple solid burners = 1: The minimum power of the person is expanded to all the sizzling :: two force ratios provided. Therefore, the expanded adjustment range '1' can cover all the load regions of the aggregate to which the hot gas generated in the hot gas generating benefit is supplied. In a preferred embodiment, there is a burner muffle furnace and a burner arranged in a burner plate of a money-burning beta muffle furnace, a burner having a gas for the gas to be heated, and having - The hot gas generator of the mixing assembly (the generated combustion gas is mixed with the gas to be heated in the mixing assembly and the mixing assembly is disposed after the burner muffle) comprises: a plurality of solid combustion H 'the plurality of solids The burner is disposed coaxially with the starting burner and is fixed in the burner plate of the burner muffle furnace> The coaxial configuration is thus understood to mean that the solid burner is arranged around the starting burner. It is advantageous for the solid combustion state to be at the same distance from the center to start the burner and at the same angular distance from each other. The number of burners can be advantageously adapted to the individual requirements. For example, two or three or four (and possibly more) solid burners may be flanged to the burner plate of the burner muffle furnace. It is also advantageous to use burners of equal or different sized, i.e., burners having the same large or different combustion power. The hot gas generator of the present invention is usefully designed in a vertical construction, and the multiple solid burner is designed and disposed in a burner plate of a burner muffle furnace to provide a solid burner with its coal dust supply and its reaction chamber extension To the burning 201219721 burner muffle furnace. Advantageously, the three solid burners are disposed at equal angular distances from one another and are disposed coaxially with the starting burner that is directed over the longitudinal axis of the burner muffle and through the burner plate. It is also possible to arrange the burner at a defined angle by means of the exhaust gas exiting the burner being guided to the center of the outlet of the burner muffle. When providing a solid burner for a ash-containing fuel, a vertical or downward tilting configuration is recommended in the burner plate of the hot gas generator or in the burner muffle furnace of the hot gas generator. It is further advantageous to use a burner muffle that must be sized only to accommodate the number of solid burners provided in the burner plate. There are fossil fuel materials in the burner muffle furnace. It is also useful that the 'combustor muffle furnace is surrounded by a feed member for the gas to be heated, and the gas to be heated can be fed to the subsequent mixing assembly for mixing with the generated combustion gas. The porous jacket unit may advantageously be configured as a mixing assembly formed as a steel combustion chamber and comprising a plurality of cylindrical and coaxial porous sleeves in the axial direction. The porous jackets form an annular gap at their transition regions. The gas to be heated flows in and is surrounded by an outer closed steel jacket and forms an annular passage. This steel plate chamber is referred to as a porous jacket combustion chamber (L〇ma combustion chamber). For example, a pulse burner of Carbotechnik Energiesysteme GmbH (Geretsried) can advantageously be used as a solid burner. Such solid burners have been described above in connection with the de 197 25 613 A1 and DE 102 32 373 B4 and the company's Internet publication. However, other solid fuel 201219721 burners can also be used. The pulse combustor has a power between 0.5 MW and 100 MW and is suitable for configuration in the upper end burner plate of the burner muffle furnace of the hot gas generator of the present invention to form a multi-pulse burner. In order to provide separate control and adjustment of each individual solid burner, a dosing member is provided which can supply coal dust to each solid burner individually and independently of the operation of the adjacent burner and can be moved to each desired Adjust the point. Fluidized 'quantitative and pneumatically transported CT dosing machines for Carbotechnik Energiesysteme GmbH ( Geretsried) are particularly suitable. The dosing machine is described in the aforementioned company's Internet publication and is described in EP 〇 〇 54 〇 18 B1 and EP 0 2 10 162 B2. The expanded or increased adjustment range of the hot gas generator of the present invention having multiple solid burners or multiple pulse burners will be further explained hereinafter by way of example as described at the outset. In this example, a maximum heat of 13.8 MW is necessary. For process-based reasons and for incorporating the burner into the burner muffle furnace, a solid burner is selected as the optimum configuration. Each solid burner must then provide a power of 4.6 MW. In the case where the adjustment range of individual solid burners is , the minimum power is 41.15 MW. Therefore, the individual solids burned to the point that they did not reach the necessary heat, and the 5-week range of individual solid combustion benefits "1" was extended to (4) Fan I with a multi-burner with three solid burners. The present invention 10 201219721 requires only one solid burner or two or all three fuel burners of a multiple burner configuration to be put into use. Thus, the total adjustment ratio for a hot gas generator having three solid burners is at 1:12 ^ and this value is achieved by a gas burner only under special conditions. Thus, the multiple solid burner configuration of the present invention on a burner muffle or a burner muffle in a hot gas generator promotes the generation of hot gases, grinding-drying devices and other thermal devices in a particularly efficient manner. The use of solid fuels, such as lignite dust, is particularly advantageous, and lignite dust is significantly more cost effective than fuel oils and combustion gases and additionally sufficient amounts of lignite dust can be obtained using blast furnace gas or synthesis gas to produce hot gases to achieve For the purpose of drying (in detail, in a coal grinding device), it can be replaced with coal dust. [Embodiment] Hereinafter, the present invention will be explained in more detail by referring to the description of the drawings. These figures are shown in a very schematic representation. Figures 1 and 2 show a hot gas generator having a multiple solid burner, "Hurray Heavy Solids Burner 1" consisting of three solid burners 3, 4, 5 in this example. As seen in Figure 1 with two illustrated solid burners 3, 4, solid feed 6 and combustion air feed 7 are assigned to each solid burner 3, 4, 5 and solid burners 3, 4, 5 It is disposed in the burner plate 12 of the burner muffle 2. Like the solid burners 3, 4, 5 and the start burner 8, the burner muffle 2 and the subsequently configured mixing assembly 9 are vertically oriented. A pulse burner for coal dust (for example, lignite dust) is used as a solid 201219721 ... heart", 5, which comprises: a conical enlarged reaction chamber having a conical asymptotic flame accelerating nozzle 17 a jet blast 18 for blowing fluidized coal dust with a deflection hood, and a radial cascade 25 on the burner head, the combustion air being transferred to the reaction chamber 16 via the radial cascade 25, thereby 'burning Air enters the air envelope 28 via the lateral air inlet 7 and is transferred therefrom to the service cascade 25 and the reaction chamber 丨6. The solid fuel fueled pulse burner has a high flame injection velocity. The flame 30 extends through the burner muffle 2, 'into the mixing assembly 9, as shown in FIG. If no solid fuel is available, the pulse burner can be switched to gas to maintain operation of subsequent devices. It can be seen from E i that the gas feed 27 is connected to the solid or pulse burners 3, 4 visible here except for the solid feeder 6. In the mixing unit 9, heating of the combustion gas generated in the multiple solid burners and mixing of the combustion gases with the processing gas 丨3 to be heated (the processing gas 13 is fed via the feeding member 11) occurs. The feed member 11 extends with its radial outer casing around the burner muffle 2, the reaction chamber 16 of the solid burners 3, 4, 5 and the flame accelerating nozzle 17 into the burner muffle 2. The burner muffle 2 is lined with refractory 1 in this specific example. The refractory lining can also be omitted. The porous central jacket unit 20 is connected to the burner muffle 2 on the outlet side and thus as a mixing assembly 9 opposite the multiple solid combustion crucible arrangement 1G in the burner plate 12. The porous jacket unit Μ is part of a steel combustion chamber and is comprised of a plurality of cylindrical and coaxial 12 201219721 porous jackets 21 having an enlarged diameter. An annular gap 22 for the inflow of the gas rolling body 13 to be heated is formed between the individual porous jackets 21, and an annular passage 24 is formed between the porous jacket 21 and the outer closed steel sheet material 23 to heat the gas 1 from the feeding member 11 It is fed to the annular passage 24^^1A and the feeder is fed into the mixing via the annular gap 22 and the hole of the socket jacket 21. The formed hot gas 14 is removed via the exhaust port 29. The top view of the hot gas generator at the temperature of the π w double u, wherein the spiral casing for the feed member 11 for the gas to be heated is disposed in the burner muffle 2 On the perimeter. The start burner 8 operated by gas or oil is disposed at the center of the burner &: and the three solid burners 3, 4, 5 are coaxially and at the same distance from each other and at the same distance from the start burner 8 and perpendicular Extend downwards. The solid burners 3, 4, 5 used as pulse burners are also suitable for the combustion of gases. If no coal dust is available in the event of an interruption, the pulse burner can be switched to natural gas, syngas or blasts without any problems: the gas can be maintained, for example, when the coal is vaporized. The operation of the subsequent devices of the blast furnace and the like. An essential advantage of the multi-fuel burner of the present invention is the expansion of the field of use of hot gas generators having solid burners. In the steel industry in the coal gasification equipment and in the 纟pci equipment and in the iron metallurgical process and also in the general heat-based device may have used: fuel combustion stomach (in detail, multiple pulse burners ) The hot gas production state. The synthesis gas produced during the vaporization of coal can advantageously be used in the energy production industry and is increasingly used in the plastics industry. On the other hand ' 13 201219721 If the synthesis requires (the syngas value is large from the generator of the steel power plant and the heavy I diagram of the gas as the energy carrier bifurcation for the grinding _ drying process, then this is in the usual heat output In the case of between 10 MW and 30) The volume is 3300 mN3/hs 10,000 mN3/h and the heat of the synthesis gas is about ll, 〇〇OkJ/mN, which means that there is considerable loss for the intended use. Industrial blast furnace gas has also been used more and more frequently for power generation. The use of coal dust to generate hot gases avoids the use of gases and other fuels (such as light petroleum, natural gas, etc.) mentioned above in hot gases, and is particularly simple in terms of energy and investment. The vehicle of the present invention having multiple solid burners has a plan view from the longitudinal section, and the production 2 is a line n - π according to FIG. Main component symbol description] 14